• Honors

    Lehrpreis 2014 der Fachschaft Physik, WWU Münster – Fachschaft Physik der WWU Münster
    Teaching Award – Fachschaft Physik, Technische Universität Chemnitz
    Nano Prize 2007 – Universität Konstanz
    Elite Award der Landesstiftung Baden-Württemberg 2006 – Landesstiftung Baden-Württemberg

  • Projects

    In Process
    Finished

  • Publications

    • Steeger, Paul; Graalmann, Jan-Hauke; Schmidt, Robert; Kupenko, Ilya; Sanchez-Valle, Carmen; Marauhn, Philipp; Deilmann, Thorsten; de Vasconcellos, Steffen Michaelis; Rohlfing, Michael; Bratschitsch, Rudolf. (). Pressure Dependence of Intra- and Interlayer Excitons in 2H-MoS2 Bilayers. Nano Letters, 23(19). doi: 10.1021/acs.nanolett.3c02428.

    • Preuß, J. A.; Gehring, H.; Schmidt, R.; Jin, L.; Wendland, D.; Kern, J.; Pernice, W. H. P.; Michaelis de Vasconcellos, S.; and, & Bratschitsch, R. (). Low-divergence hBN single-photon source with a 3D-printed low-fluorescence elliptical polymer microlens. Nano Letters, 23(2), 407–413. doi: 10.1021/acs.nanolett.2c03001.
    • Carey, B.; Wessling, N. K.; Steeger, P.; Klusmann, C.; Schneider, R.; Fix, M.; Schmidt, R.; Albrecht, M.; Michaelis de Vasconcellos, S.; Bratschitsch, R. and, & Arora, A. (). High-performance broadband Faraday rotation spectroscopy of 2D materials and thin magnetic films. Small Methods, 6(11), Article 2200885. doi: 10.1002/smtd.202200885.
    • Shao, F.; Woo, S. Y.; Wu, N.; Schneider, R.; Mayne, A. J.; Michaelis de Vasconcellos, S.; Arora, A.; Carey, B. J.; Preuß, J. A.; Bonnet, N.; Mattevi, C.; Watanabe, K.; Taniguchi, T.; Niu, Z.; Bratschitsch, R.; and Tizei, L. H. G. (). Substrate influence on transition metal dichalcogenide monolayer exciton absorption linewidth broadening. Physical Review Materials, 6(7), Article 074005. doi: 10.1103/PhysRevMaterials.6.074005.
    • Niehues, I.; Deilmann, T.; Kutrowska-Girzycka, J.; Taghizadeh, A.; Bryja, L.; Wurstbauer, U.; Bratschitsch, R.; and, & Jadczak J. (). Uniaxial strain tuning of Raman spectra of a ReS2 monolayer. Physical Review B, 105(20), Article 205432. doi: 10.1103/PhysRevB.105.205432.
    • Preuss, J. A.; Groll, D.; Schmidt, R.; Hahn, T.; Machnikowski, P.; Bratschitsch, R.; Kuhn, T.; Michaelis de Vasconcellos, S.; and, & Wigger, D. (). Resonant and phonon-assisted ultrafast coherent control of a single hBN color center. Optica, 9(5), 522–531. doi: 10.1364/OPTICA.448124.
    • Sickel, J.; Asbach, M.; Gammer, C.; Bratschitsch, R.; and, & Kohl, H. (). Quantitative strain and topography mapping of 2D materials using nanobeam electron diffraction. Microscopy and Microanalysis, 28(3), 701–715. doi: 10.1017/S1431927622000502.
    • Thompson J P P, Brem S, Verjans M, Schmidt R, Michaelis de Vasconcellos S, Bratschitsch R, and, & Malic E. (). Anisotropic exciton diffusion in atomically-thin semiconductors. 2D Materials, 9(2). doi: 10.1088/2053-1583/ac4d13.
    • Schneider R, Fix M, Bensmann J, Michaelis de Vasconcellos S, Albrecht M, and, & Bratschitsch R. (). Composition-dependent ultrafast THz emission of spintronic CoFe/Pt thin films. Applied Physics Letters, 120(4). doi: 10.1063/5.0076699.
    • Michaelis de Vasconcellos, Steffen; Wigger, Daniel; Wurstbauer, Ursula; Holleitner, Alexander W.; Bratschitsch, Rudolf; Kuhn, Tilmann;. (). Single-Photon Emitters in Layered Van der Waals Materials. Physica Status Solidi (B) - Basic Solid State Physics, 259(4), Article 2100566. doi: 10.1002/pssb.202100566.
    • Eich A., Spiekermann T. C., Gehring H., Sommer L., Bankwitz J. R., Schrinner P. P. J., Preuß J. A., Michaelis de Vasconcellos S., Bratschitsch R., Pernice W. H. P., & Schuck C. (). Single photon emission from individual nanophotonic-integrated colloidal quantum dots. ACS Photonics, 9(2), 551–558. doi: 10.1021/acsphotonics.1c01493.
    • Bratschitsch R.; Michaelis De Vasconcellos S.; Pernice W.H.P.; Demokritov S.O.; Demidov V.E.; Raskhodchikov D.; Bensmann J.; Nikolaev K.O.; Lomonte E.; Jin L.; Steeger P.; Preuß J.A.; Schmidt R.; Schneider R., & Kern J. (). Propagation of Spin Waves in Intersecting Yttrium Iron Garnet Nanowaveguides. Physical Review Applied, 18(5). doi: 10.1103/PhysRevApplied.18.054081.
    • Preuß, J.A.; Groll, D.; Schmidt, R.; Hahn, T.; Machnikowski, P.; Bratschitsch, R.; Kuhn, T.; Michaelis de Vasconcellos, S., & Wigger, D. (). Resonant and phonon-assisted coherent control of single hBN color centers. Optica, 9(3), 522–531. doi: 10.1364/OPTICA.448124.
    • Michaelis de Vasconcellos, S.; Wigger, D.; Wurstbauer, U.; Holleitner, A.W.; Bratschitsch, R., & Kuhn, T. (). Single-photon emitters in layered van der Waals materials. Physica Status Solidi (B) - Basic Solid State Physics, 259, Article 2100566. doi: 10.1002/pssb.202100566.

    • Rosati R, Schmidt R, Brem S, Perea-Causín R, Niehues I, Kern J, Preuß J, Schneider R, Michaelis de Vasconcellos S, Bratschitsch R, and, & Malic E. (). Dark exciton anti-funneling in atomically thin semiconductors. Nature Communications, 12(7221). doi: 10.1038/s41467-021-27425-y.
    • Divinskiy B, Merbouche H, Nikolaev K O, Michaelis de Vasconcellos S, Bratschitsch R, Gouéré D, Lebrun R, Cros V, Ben Youssef J, Bortolotti P, Anane A, Demokritov S O, and, & Demidov V E. (). Dispersionless propagation of ultrashort spin-wave pulses in ultrathin yttrium iron garnet waveguides. Phys. Rev. Applied, 16. doi: 10.1103/PhysRevApplied.16.024028.
    • Osthues H, Schwermann C, Preuß J, Deilmann T, Bratschitsch R, Rohlfing M, and, & Doltsinis N. (). Covalent photofunctionalization and electronic repair of 2H-MoS2 via nitrogen incorporation. Phys. Chem. Chem. Phys., 23, 18517–18524. doi: 10.1039/D1CP02313F.
    • Preuß J, Rudi E, Kern J, Schmidt R, Bratschitsch R, and Michaelis de, & Vasconcellos S. (). Assembly of large hBN nanocrystal arrays for quantum light emission. 2D Materials, 8(3). doi: 10.1088/2053-1583/abeca2.
    • Eich A; Spiekermann TC; Sommer L; Gehring H; Bankwitz JR; Preuss JA; Kern J; Vasconcellos SMd; Bratschitsch R; Pernice WHP, & Schuck C. (). Integration of colloidal quantum dots with nanophotonic circuits. In SPIE (Ed.): Quantum Nanophotonic Materials, Devices, and Systems 2021 , pp. 15–21. San Diego: SPIE. doi: 10.1117/12.2594694.

    • Arora A, Deilmann T, Reichenauer T, Kern J, Michaelis de Vasconcellos S, Rohlfing M, and, & Bratschitsch R. (). Excited-state trions in monolayer WS2. Phys. Rev. Lett., 123, 167401. doi: 10.1103/PhysRevLett.123.167401.
    • Selig M, Katsch F, Schmidt R, Michaelis de Vasconcellos S, Bratschitsch R, Malic E, and, & Knorr A. (). Ultrafast dynamics in monolayer TMDCs: the interplay of dark excitons, phonons and intervalley Coulomb exchange. Phys. Rev. Res., 1, 022007. doi: 10.1103/PhysRevResearch.1.022007.
    • Huber B, Pres S, Wittmann E, Dietrich L, Lüttig J, Fersch D, Krauss E, Friedrich D, Kern J, Lisinetskii V, Hensen M, Hecht B, Bratschitsch R, Riedle E, and, & Brixner T. (). Space- and time-resolved UV-to-NIR surface spectroscopy and 2D nanoscopy at 1 MHz repetition rate. Rev. Sci. Instr., 90, 113103. doi: 10.1063/1.5115322.
    • Schneider R, Fix M, Bensmann J, Michaelis de Vasconcellos S, Albrecht M, and, & Bratschitsch R. (). Spintronic GdFe/Pt THz emitters. Appl. Phys. Lett., 115, 152401. doi: 10.1063/1.5120249.
    • Taghavi N S, Gant P, Huang P, Niehues I, Schmidt R, Michaelis de Vasconcellos S, Bratschitsch R, García-Hernández M, Frisenda R, and, & Castellanos-Gomez A. (). Thickness determination of MoS2, MoSe2, WS2 and WSe2 on transparent stamps used for deterministic transfer of 2D materials. Nano Research, 12(7), 1691–1695. doi: 10.1007/s12274-019-2424-6.
    • Hsu C, Frisenda R, Schmidt R, Arora A, Michaelis de Vasconcellos S, Bratschitsch R, van der Zant H S J, and, & Castellanos-Gomez A. (). Thickness-dependent refractive index of 1L, 2L, and 3L MoS2, MoSe2, WS2, and WSe2. Adv. Optical Mater., 7(13), 1900239. doi: 10.1002/adom.201900239.
    • Niehues I, Blob A, Stiehm T, Michaelis de Vasconcellos S, and, & Bratschitsch R. (). Interlayer excitons in bilayer MoS2 under uniaxial tensile strain. Nanoscale, 11, 12788–12792. doi: 10.1039/C9NR03332G.
    • Stiehm T, Schneider R, Kern J, Niehues I, Michaelis de Vasconcellos S, and, & Bratschitsch R. (). Supercontinuum second harmonic generation spectroscopy of atomically thin semiconductors. Rev. Sci. Instrum., 90, 083102. doi: 10.1063/1.5100593.
    • Paur M, Molina-Mendoza A J, Bratschitsch R, Wanatabe K, Taniguchi T, & Mueller T. (). Electroluminescence from multi-particle exciton complexes in transition metal dichalcogenide semiconductors. Nature Communications, 10, 1709.
    • Wigger, D.; Schmidt, R.; Del Pozo-Zamudio, O.; Preuß, J.A.; Tonndorf, P.; Schneider, R.; Steeger, P.; Kern, J.; Khodaei, Y.; Sperling, J.; Michaelis de Vasconcellos, S.; Bratschitsch, R., & Kuhn, T. (). Phonon-assisted emission and absorption of individual color centers in hexagonal boron nitride. 2D Materials, 6, Article 035006. doi: 10.1088/2053-1583/ab1188.
    • Omelyanchik A, Efremova M, Myslitskaya N, Zybin A, Carey B J, Sickel J, Kohl H, Bratschitsch R, Abakumov M, Majouga A, Samusev I, and, & Rodionova V. (). Magnetic and Optical Properties of Gold-Coated Iron Oxide Nanoparticles. J. Nanosci. Technol., 19, 4987–4993.
    • Iguiñiz N, Frisenda R, Bratschitsch R, and Castellanos‐Gomez A. (). Revisiting the Buckling Metrology Method to Determine the Young's Modulus of 2D Materials. Adv. Mater., 31(10), 1807150. doi: 10.1002/adma.201807150.

    • Arora A, Deilmann T, Marauhn P, Drüppel M, Schneider R, Molas M R , Vaclavkova D, Michaelis de Vasconcellos S, Rohlfing M, Potemski M, and, & Bratschitsch R. (). Valley-contrasting optics of interlayer excitons in Mo- and W-based bulk transition metal dichalcogenides. Nanoscale, 10, 15571–15577. doi: 10.1039/C8NR03764G.
    • Helmrich S, Schneider R, Achtstein A W, Arora A, Herzog B, Michaelis de Vasconcellos S, Kolarczik M, Schoeps O, Bratschitsch R, Woggon U, and, & Owschimikow N. (). Exciton-phonon coupling in mono- and bilayer MoTe2. 2D Materials, 5(4), 045007. doi: 10.1088/2053-1583/aacfb7.
    • Schwermann C, Stiehm T, Tonndorf P, Schneider R, Schmidt R, Kern J, Michaelis de Vasconcellos S, Bratschitsch R, and, & Doltsinis N L. (). Incorporation of oxygen atoms as a mechanism for photoluminescence enhancement of chemically treated MoS2. Phys. Chem. Chem. Phys., 20, 16918–16923. doi: 10.1039/C8CP03052A.
    • Selig M, Berghäuser G, Richter M, Bratschitsch R, Knorr A, and, & Malic E. (). Dark and bright exciton formation, thermalization, and photoluminescence in monolayer transition metal dichalcogenides. 2D Materials, 5(3), 035017. doi: 10.1088/2053-1583/aabea3.
    • Niehues I, Blob A, Stiehm T, Schmidt R, Jadriško V, Radatović B, Čapeta D, Kralj M, Michaelis de Vasconcellos S, and, & Bratschitsch R. (). Strain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition. 2D Materials, 5(3), 031003. doi: 10.1088/2053-1583/aaba9a.
    • Niehues I, Schmidt R, Drüppel M, Marauhn P, Christiansen D, Selig M, Berghäuser G, Wigger D, Schneider R, Braasch L, Koch R, Castellanos-Gomez A, Kuhn T, Knorr A, Malic E, Rohlfing M, Michaelis de Vasconcellos S, and, & Bratschitsch R. (). Strain control of exciton-phonon coupling in atomically thin semiconductors. Nano Letters, 18(3), 1751–1757. doi: 10.1021/acs.nanolett.7b04868.
    • Berghäuser G, Bernal-Villamil I, Schmidt R, Schneider R, Niehues I, Erhart P, Michaelis de Vasconcellos S, Bratschitsch R, Knorr A, and, & Malic E. (). Inverted valley polarization in optically excited transition metal dichalcogenides. Nature Communications, 9. doi: 10.1038/s41467-018-03354-1.
    • Bernal-Villamil I, Berghäuser G, Selig M, Niehues I, Schmidt R, Schneider R, Tonndorf P, Erhart P, Michaelis de Vasconcellos S, Bratschitsch R, Knorr A, and, & Malic E. (). Exciton broadening and band renormalization due to Dexter-like intervalley coupling. 2D Materials, 5(2).
    • Arora A, Koperski M, Slobodeniuk A, Nogajewski K, Schmidt R, Schneider R, Molas M, Michaelis de Vasconcellos S, Bratschitsch R and, & Potemski M. (). Zeeman spectroscopy of excitons and hybridization of electronic states in few-layer WSe2, MoSe2 and MoTe2. 2D Materials, 6(1), 015010. doi: 10.1088/2053-1583/aae7e5.
    • Schneider R, Fix M, Heming R, Michaelis de Vasconcellos S, Albrecht M, and, & Bratschitsch R. (). Magnetic-field-dependent THz emission of spintronic TbFe/Pt layers. ACS Photonics, 5(10), 3936–3942. doi: 10.1021/acsphotonics.8b00839.
    • Niu Y, Gonzalez-Abad S, Frisenda R, Marauhn P, Drüppel M, Gant P, Schmidt R, Taghavi N S, Barcons D, Molina-Mendoza A J, Michaelis de Vasconcellos S, Bratschitsch R, Perez De Lara D, Rohlfing M, and, & Castellanos-Gomez A. (). Thickness-Dependent Differential Reflectance Spectra of Monolayer and Few-Layer MoS2, MoSe2,WS2 and WSe2. Nanomaterials, 8(9), 725. doi: 10.3390/nano8090725.
    • Hossain E, Rahman A A, Bapat R, Parmar J B, Shah A P, Arora A, Bratschitsch R, and, & Bhattacharya A. (). Facile synthesis of WS2 nanotubes by sulfurization of tungsten thin films: formation mechanism, structural and optical properties. Nanoscale, 10, 16683–16691. doi: 10.1039/C8NR03138J.

    • Arora A, Drüppel M, Schmidt R, Deilmann T, Schneider R, Molas M R, Marauhn P, Michaelis de Vasconcellos S, Potemski M, Rohlfing M, and, & Bratschitsch R. (). Interlayer excitons in a bulk van der Waals semiconductor. Nature Communications, 8(1). doi: 10.1038/s41467-017-00691-5.
    • Christiansen D, Selig M, Berghäuser G, Schmidt R, Niehues I, Schneider R, Arora A, Michaelis de Vasconcellos S, Bratschitsch R, Malic E, and, & Knorr A. (). Phonon sidebands in monolayer transition metal dichalcogenides. Physical Review Letters, 119, 187402. doi: 10.1103/PhysRevLett.119.187402.
    • Tonndorf P, Del Pozo Zamudio O, Gruhler N, Kern J, Schmidt R, Dmitriev A I, Bakhtinov A P, Tartakovskii A I, Pernice W, Michaelis de Vasconcellos S, & Bratschitsch R. (). On-Chip Waveguide Coupling of a Layered Semiconductor Single-Photon Source. Nano Letters, 17(9), 5446–5451. doi: 10.1021/acs.nanolett.7b02092.
    • Plechinger G, Nagler P, Arora A, Schmidt R, Chernikov A, Lupton J, Bratschitsch R, Schüller C, and, & Korn T. (). Valley dynamics of excitons in monolayer dichalcogenides. Phys. Status Solidi RRL, 11(7). doi: 10.1002/pssr.201700131.
    • Frisenda R, Drüppel M, Schmidt R, Michaelis de Vasconcellos S, Perez de Lara D, Bratschitsch R, Rohlfing M, and, & Castellanos-Gomez A. (). Biaxial strain tuning of the optical properties of single-layer transition metal dichalcogenides. npj 2D Materials and Applications, 1. doi: 10.1038/s41699-017-0013-7.
    • Arora A, Noky J, Drüppel M, Jariwala B, Deilmann T, Schneider R, Schmidt R, Del Pozo Zamudio O, Stiehm T, Bhattacharya A, Krüger P, Michaelis de Vasconcellos S, Rohlfing M, and, & Bratschitsch R. (). Highly anisotropic in-plane excitons in atomically thin and bulk-like 1T'-ReSe2. Nano Letters, 17, 3202–3207. doi: 10.1021/acs.nanolett.7b00765.
    • Stiehm T, Kern J, Schmidt R, Michaelis de Vasconcellos S, and, & Bratschitsch R. (). Polarization contrast scattering spectroscopy of individual metal nanoantennas. Applied Physics B, 123, 150. doi: 10.1007/s00340-017-6727-6.
    • Frisenda R, Niu Y, Gant P, Molina-Mendoza A, Schmidt R, Bratschitsch R, Liu J, Fu L, Dumcenco D, Kis A, Perez de Lara D, & Castellanos-Gomez A. (). Micro-reflectance and transmittance spectroscopy: a versatile and powerful tool to characterize 2D materials. Journal of Physics D: Applied Physics, 50. doi: 10.1088/1361-6463/aa5256.
    • Tonndorf P, Schwarz S, Kern J, Niehues I, Del Pozo-Zamudio O, Dmitriev AI, Bakhtinov AP, Borisenko DN, Kolesnikov NN, Tartakovskii AI, Michaelis de Vasconcellos S, & Bratschitsch R. (). Single-photon emitters in GaSe. 2D Materials, 4(2), 021010. doi: 10.1088/2053-1583/aa525b.
    • Porcel MAG, Schepers F, Epping JP, Hellwig T, Hoekman M, Heideman RG, Slot PJM, Lee CJ, Schmidt R, Bratschitsch R, Fallnich C, & Boller K. (). Two-octave spanning supercontinuum generation in stoichiometric silicon nitride waveguides pumped at telecom wavelengths. Opt. Express, 25(2), 1542–1554. doi: 10.1364/OE.25.001542.

    • Plechinger G, Nagler P, Arora A, Granados del Aguila A, Ballotin M V, Frank T, Steinleitner P, Gmitra M, Fabian J, Christianen P C M, Bratschitsch R, Schüller C, Korn T. (). Excitonic valley effects in monolayer WS2 under high magnetic fields. Nano Lett., 16, 7899–7904.
    • Plechinger G, Nagler P, Arora A, Schmidt R, Chernikov A, Granados del Aguila A, Christianen P C M, Bratschitsch R, Schüller C, & Korn T. (). Trion fine structure and coupled spin-valley dynamics in monolayer tungsten disulfide. Nature Communications, 7. doi: 10.1038/ncomms12715.
    • Schmidt R, Arora A, Plechinger G, Nagler P, Granados del Águila A, Ballottin M V, Christianen P C M, Michaelis de Vasconcellos S, Schüller C, Korn T, & Bratschitsch R. (). Magnetic-field-induced rotation of polarized light emission from monolayer WS2. Phys. Rev. Lett., 117. doi: 10.1103/PhysRevLett.117.077402.
    • Kern J, Niehues I, Tonndorf P, Schmidt R, Wigger D, Schneider R, Stiehm T, Michaelis de Vasconcellos S, Reiter D E, Kuhn T, & Bratschitsch R. (). Nanoscale positioning of single-photon emitters in atomically thin WSe2. Advanced Materials, 28(33), 7101–7105. doi: 10.1002/adma.201600560.
    • Arora A, Schmidt R, Schneider R, Molas M, Breslavetz I, Potemski M, & Bratschitsch R. (). Valley Zeeman splitting and valley polarization of neutral and charged excitons in monolayer MoTe2 at high magnetic fields. Nano Letters, 16, 3624–3629. doi: 10.1021/acs.nanolett.6b00748.
    • Stiehm T, Kern J, Jürgensen M, Michaelis de Vasconcellos S, & Bratschitsch R. (). Nanoantenna-controlled radiation pattern of the third-harmonic emission. Applied Physics B, 122. doi: 10.1007/s00340-016-6390-3.
    • Schmidt R, Berghäuser G, Schneider R, Selig M, Tonndorf P, Malic E, Knorr A, Michaelis de Vasconcellos S, & Bratschitsch R. (). Ultrafast Coulomb-induced intervalley coupling in atomically thin WS2. Nano Letters, 16, 2945–2950. doi: 10.1021/acs.nanolett.5b04733.
    • Island J O, Kuc A, Diependaal E H, Bratschitsch R, van der Zant H S J, Heine T, & Castellanos-Gomez A. (). Precise and reversible band gap tuning in single-layer MoSe2 by uniaxial strain. Nanoscale, 8, 2589–2593. doi: 10.1039/C5NR08219F.
    • Schepers F, Porcel MAG, Epping JP, Hellwig T, Hoekman M, Mateman R, Leinse A, Heideman RG, Rees A, Slot PJM, Lee CJ, Schmidt R, Bratschitsch R, Boller K, & Fallnich C. (). Ultra-broadband Supercontinuum Generation at Telecommunication Wavelengths in Dispersion Engineered Stoichiometric Si3N4 Waveguides. In Conference on Lasers and Electro-Optics, San Jose, USA , p. AM3J.5. doi: 10.1364/CLEO_AT.2016.AM3J.5.
    • Schmidt, R; Niehues, I; Schneider, R; Drüppel, M; Deilmann, T; Rohlfing, M; Michaelis de Vasconcellos, S; Castellanos-Gomez, A; Bratschitsch, R. (). Reversible uniaxial strain tuning in atomically thin WSe2. 2D Materials, 3, Article 021011.

    • G. Rubio-Bollinger, R. Guerrero, D. Perez de Lara, J. Quereda , L. Vaquero-Garzon, N. Agraït, R. Bratschitsch, and A. Castellanos-Gomez. (). Enhanced visibility of MoS2, MoSe2, WSe2 and black-phosphorus: Making optical identification of 2D semiconductors easier. Electronics, 4, 847–856. doi: 10.3390/electronics4040847.
    • J. Kern, A. Trügler, I. Niehues, J. Ewering, R. Schmidt, R. Schneider, S. Najmaei, A. George, J. Zhang, J. Lou, U. Hohenester, S. Michaelis de Vasconcellos, and R. Bratschitsch. (). Nanoantenna-enhanced light-matter interaction in atomically thin WS2. ACS Photonics, 2(9), 1260–1265. doi: 10.1021/acsphotonics.5b00123.
    • C. Poellmann, P. Steinleitner, U. Leierseder, P. Nagler, G. Plechinger, M. Porer, R. Bratschitsch, C. Schüller, T. Korn, and R. Huber. (). Resonant internal quantum transitions and femtosecond radiative decay of excitons in monolayer WSe2. Nature Materials, 14, 889.
    • A. Hassdenteufel, J. Schmidt, C. Schubert, B. Hebler, M. Helm, M. Albrecht, and R. Bratschitsch. (). Low remanence criterion for helicity-dependent all-optical magnetic switching in ferrimagnets. Physical Review B, 1958.
    • P. Tonndorf, R. Schmidt, R. Schneider, J. Kern, M. Buscema, G. A. Steele, A. Castellanos-Gomez, H. S. J. van der Zant, S. Michaelis de Vasconcellos, and R. Bratschitsch. (). Single-photon emission from localized excitons in an atomically thin semiconductor. Optica, 2014.
    • A. Hassdenteufel, C. Schubert, P. Reinhardt, P. Richter, M. Fronk, D. R. T. Zahn, R. Bratschitsch, G. Salvan, and M. Albrecht,. (). Magneto-optical response of ferrimagnetic Tb-Fe thin films in the visible and ultraviolet range. Journal of Physics D: Applied Physics, 1950(48).

    • Haßdenteufel A., Schubert C., Hebler B., Schultheiss H., Fassbender J., Albrecht M., & Bratschitsch R. (). All-optical helicity dependent magnetic switching in Tb-Fe thin films with a MHz laser oscillator . Optics Express, 22(8), 10017–10025. doi: 10.1364/OE.22.010017.
    • Groenendijk D.J., Buscema M., Steele G.A., Michaelis de Vasconcellos S., Bratschitsch R., van der Zant H.S.J., & Castellanos-Gomez A. (). Photovoltaic and Photothermoelectric Effect in a Double-Gated WSe2 Device. Nano Lett., 14, 5846.
    • Hassdenteufel A., Schubert C., Schmidt J., Richter P., Zahn D.R.T., Salvan G., Helm M., Bratschitsch R., & Albrecht M. (). Dependence of all-optical magnetic switching on the sublattice magnetization orientation in Tb-Fe thin films. Appl. Phys. Lett., 105, 112403.
    • Raskin M., Stiehm T., Cohn A.W., Whitaker K.M., Ochsenbein S.T., Michaelis de Vasconcellos S., Brandt M.S., Gamelin D.R., & Bratschitsch R. (). Ultrafast spin dynamics in magnetic wide-bandgap semiconductors. Phys. stat. sol., (b) 251, 1685.
    • Rodriguez R.D., Muller S., Sheremet E., Zahn D.R.T., Villabona A., Lopez-Rivera S.A., Tonndorf P., Michaelis de Vasconcellos S., & Bratschitsch R. (). Selective Raman modes and strong photoluminescence of gallium selenide flakes on sp(2) carbon. J. Vac. Sci. Tech., B 32, 04E106.
    • Pfullmann N., Noack M., de Andrade J.C., Rausch S., Nagy T., Reinhardt C., Knittel V., Bratschitsch R., Leitenstorfer A., Akemeier D., Hutten A., Kovacev M., & Morgner U. (). Nano-antennae assisted emission of extreme ultraviolet radiation. Annalen der Physik, 526, 10017–10025.
    • Schubert C, Hassdenteufel A, Matthes P, Schmidt J, Helm M, Bratschitsch R, & Albrecht M. (). All-optical helicity dependent magnetic switching in an artificial zero moment magnet. Appl. Phys. Lett., 104, 082406.
    • Bratschitsch R. (). Monolayer diodes light up. Nature Nanotech, 247.

    • Tonndorf P, Schmidt R, Böttger P, Zhang X, Börner J, Liebig A, Albrecht M, Kloc C, Gordan O, Zahn DR, Michaelis de Vasconcellos S, & Bratschitsch R. (). Photoluminescence emission and Raman response of monolayer MoS₂, MoSe₂, and WSe₂. Optics Express, 21(4), 4908–16. doi: 10.1364/OE.21.004908.
    • Temnov, V.V., Klieber, Ch., Nelson, K.A., Thomay, T., Knittel, V., Leitenstorfer A., Makarov, D., Albrecht, M., & Bratschitsch, R. (). Femtosecond nonlinear ultrasonics in gold probed with ultrashort surface plasmons . Nature Comm., 4, 1468.
    • Manson, N.B., Beha, K., Batalov, A., Rogers, L.J., Doherty, M.W., Bratschitsch, R., & Leitenstorfer A. (). Assignment of the NV0 575 nm zero-phonon line in diamond to a2E-2A2 transition. Phys. Rev. B, 2013, 155209.
    • Pfullmann, N., Walterman, C., Noack, M., Rausch, S., Nagy, T., Reinhardt, C., Kovacev, M., Knittel, V., Bratschitsch, R., Akemeier, D., Huetten, A., Leitenstorfer, A., & Morgner, U. (). Bow-tie nano-antenna assisted generation of extreme ultraviolet radiation. New. J. Phys., 15, 093027.
    • Pfullmann, N., Waltermann C., Kovacev, M., Knittel, V., Bratschitsch, R., Akemeier, D., Huetten, A., Leitenstorfer A., & Morgner, U. (). Nano-antenna-assisted harmonic generation . Applied Physics B, 113, 75.
    • N. B. Manson, K. Beha, A. Batalov, L. J. Rogers, M. W. Doherty, R. Bratschitsch, and A. Leitenstorfer. (). Assignment of the NV0 575 nm zero-phonon line in diamond to a 2E-2A2 transition. Phys. Rev. B, 87, 155209.
    • Hassdenteufel A., Hebler B., Schubert C., Liebig A., Teich M., Helm M., Aeschlimann M., Albrecht M., & Bratschitsch R. (). Thermally assisted all-optical helicity dependent magnetic switching in amorphous Fe100-xTbx alloy films. Advanced Materials, 25(22), 3122–3128. doi: 10.1002/adma.201300176.
    • Tonndorf P., Schmidt R., Bottger P., Zhang X., Borner J., Liebig A., Albrecht M., Kloc C., Gordan O., Zahn D.R.T., De Vasconcellos S.M., & Bratschitsch R. (). Photoluminescence emission and Raman response of monolayer MoS2, MoSe2, and WSe2 . Optics Express, 21(4), 4908–4916. doi: 10.1364/OE.21.004908.
    • Temnov V.V., Klieber C., Nelson K.A., Thomay T., Knittel V., Leitenstorfer A., Makarov D., Albrecht M., & Bratschitsch R. (). Femtosecond nonlinear ultrasonics in gold probed with ultrashort surface plasmons. Nature Communications, 4(null), –. doi: 10.1038/ncomms2480.

    • D. Martin-Becerra, V. V. Temnov, T. Thomay, A. Leitenstorfer, R. Bratschitsch, G. Armelles, A. Garcia-Martin, and M. Gonzalez. (). Spectral dependence of the magnetic modulation of surface plasmon polaritons in noble/ferromagnetic/noble metal films. Phys. Rev. B, 86, 035118.
    • K. Beha, H. Fedder, M. Wolfer, M. C. Becker, P. Siyushev, M. Jamali, A. Batalov, C. Hinz, J. Hees, L. Kirste, H. Obloh, E. Gheeraert, B. Naydenov, I. Jakobi, F. Dolde, S. Pezzagna, D. Twittchen, M. Markham, D. Dregely, H. Giessen, J. Meijer, F. Jelezko, C. E. Nebel, R. Bratschitsch, A. Leitenstorfer, and J. Wrachtrup. (). Diamond Nanophotonics. Beilstein J. Nanotechnol., 3, 895–908.
    • R. Bratschitsch, R. Huber, and A. Leitenstorfer. (). Femtosecond quantum optics with semiconductor nanostructures. In F. Jahnke (Ed.), Quantum optics with semiconductor nanostructures (pp. 487–527).
    • M. Becker, P. Siyushev, I. Jakobi, F. Dolde, S. Pezzagne, J. Meijer, K. Beha, A. Batalov, C. Hinz, R. Bratschitsch, A. Leitenstorfer, F. Jelezko, M. Wolfer, J. Hees, H. Obloh, C. Nebel, D. Twitchen, M. Markham, D. Dregely, H. Giessen, H. Fedder, and J. Wrachtrup. (). Diamond nano-photonics.
    • Hanke T., Cesar J., Knittel V., Trugler A., Hohenester U., Leitenstorfer A., & Bratschitsch R. (). Tailoring spatiotemporal light confinement in single plasmonic nanoantennas. Nano Letters, 12(2), 992–996. doi: 10.1021/nl2041047.
    • Beha K., Batalov A., Manson N.B., Bratschitsch R., & Leitenstorfer A. (). Optimum photoluminescence excitation and recharging cycle of single nitrogen-vacancy centers in ultrapure diamond. Physical Review Letters, 109(9), –. doi: 10.1103/PhysRevLett.109.097404.
    • Wolters J., Kewes G., Schell A.W., Nusse N., Schoengen M., Lochel B., Hanke T., Bratschitsch R., Leitenstorfer A., Aichele T., & Benson O. (). Coupling of single nitrogen-vacancy defect centers in diamond nanocrystals to optical antennas and photonic crystal cavities. Physica Status Solidi (B) - Basic Solid State Physics, 249(5), 918–924. doi: 10.1002/pssb.201100156.

    • G. Kiliani, R. Schneider, D. Litvinov, D. Gerthsen, M. Fonin, U. Rüdiger, A. Leitenstorfer, and R. Bratschitsch. (). Ultraviolet photoluminescence of ZnO quantum dots sputtered at room temperature. OPt. Express, 2011, 1641.
    • A. Schell, G. Kewes, T. Hanke, A. Leitenstorfer, R. Bratschitsch, O. Benson, and T. Aichele. (). Single defect centers in diamond nanocrystals as quantum probes for plasmonic nanostructures. Opt. Express, 19, 7914.
    • K. M. Whitaker, M. Raskin, G. Kiliani, S. T. Ochsenbein, N. Janßen, M. Fonin, U. Rüdiger, A. Leitenstorfer, D. R. Gamelin, and R. Bratschitsch. (). Spin-on spintronics: Ultrafast electron spin dynamics in ZnO and ZnCoO sol-gel films. Nano Lett., 11, 3355–3360.
    • J. Huneke, I. D’Amico, P. Machnikowski, T. Thomay, R. Bratschitsch, A. Leitenstorfer, and T. Kuhn. (). Role of Coulomb correlations for femtosecond pump-probe signals obtained from a single quantum dot. Phys. Rev. B, 84, 115320.
    • T. Thomay, T. Hanke, K. Beha, T. Züchner, K. Braun, R. Gutbrod, M. Fleischer, D. P. Kern, A. Meixner, A. Leitenstorfer, and R. Bratschitsch. (). Coupling quantum light emitters to metal and dielectric nanophotonic structures. In Th. Schimmel, H. v. Löhneysen, M. Barczewski (Eds.), Nanotechnology – Fundamentals and Applications of Functional Nanostructures (pp. 161–180). unbekannt / n.a. / unknown.
    • Bommer M., Schulz W.-M., Robach R., Jetter M., Michler P., Thomay T., Leitenstorfer A., & Bratschitsch R. (). Triggered single-photon emission in the red spectral range from optically excited InP/(Al,Ga)InP quantum dots embedded in micropillars up to 100 K. Journal of Applied Physics, 110(6), –. doi: 10.1063/1.3633218.

    • M. Krauß, H. C. Schneider, R. Bratschitsch, Z. Chen, and S. T. Cundiff. (). Ultrafast spin dynamics in optically excited bulk GaAs at low temperatures. Phys. Rev. B, 81, 035213.
    • V. V. Temnov, G. Armelles, U. Woggon, D. Guzatov, A. Cebollada, A. Garcia-Martin, J. M. Garcia-Martin, T. Thomay, A. Leitenstorfer, and R. Bratschitsch. (). Active magnetoplasmonics in hybrid metal-ferromagnet structures. Nature Photonics, 4, 107.
    • Z. Chen, S. Carter, R. Bratschitsch, and S. T. Cundiff. (). Optical excitation and control of electron spins in semiconductor quantum wells. Physica E, 42, 1803.
    • W.-M. Schulz, T. Thomay, M. Eichfelder, M. Bommer, M. Wiesner, R. Roßbach, M. Jetter, R. Bratschitsch, A. Leitenstorfer, and P. Michler. (). Optical properties of red emitting self-assembled InP/((AlGa)In)P quantum dot based micropillars. Optics Express, 18, 12543–12551.
    • D. Martin-Becerra, J. B. Gonzalez-Diaz, V. V. Temnov, A. Cebollada, G. Armelles, T. Thomay, A. Leitenstorfer, R. Bratschitsch, A. Garcia-Martin, and M. U. Gonzalez. (). Enhancement of the magnetic modulation of surface plasmon polaritons in Au/Co/Au films. Appl. Phys. Lett., 97, 183114.
    • R. Bratschitsch and A. Leitenstorfer. (). Ultrafast semiconductor quantum optics. In N. Costa and A. Cartaxo (Ed.), Advances in Lasers and Electro Optics, INTECH unbekannt / n.a. / unknown.

    • G. Mayer, M. Fonin, U. Rüdiger, R. Schneider, D. Gerthsen, N. Janßen, and R. Bratschitsch. (). Structure and optical properties of high-quality ZnO nanocrystals embedded in SiO2 fabricated by rf-sputtering. Nanotechnology, 20, 075601.
    • F. Sotier, T. Thomay, T. Hanke, S. Mahapatra, A. Frey, K. Brunner, R. Bratschitsch, A. Leitenstorfer. (). Femtosecond few-fermion dynamics and deterministic single-photon gain in a quantum dot. Nature Physics, 5, 352.
    • V. V. Temnov, K. Nelson, G. Armelles, A. Cebollada, T. Thomay, A. Leitenstorfer, and R. Bratschitsch. (). Femtosecond surface plasmon interferometry. Optics Express, 17, 8423.
    • T. Hanke, G. Krauss, D. Träutlein, B. Wild, R. Bratschitsch, and A. Leitenstorfer. (). Efficient nonlinear light emission of single gold optical antennas driven by few-cycle near-infrared pulses. Phys. Rev. Lett., 103, 257404.

    • J. Merlein, M. Kahl, A. Zuschlag, A. Sell, A. Halm, J. Boneberg, P. Leiderer, A. Leitenstorfer, and R. Bratschitsch. (). Nanomechanical control of an optical antenna. Nature Photonics, 2, 230.
    • T. Thomay, T. Hanke, M. Tomas, F. Sotier, K. Beha, V. Knittel, M. Kahl, K. M. Whitaker, D. R. Gamelin, A. Leitenstorfer, and R. Bratschitsch. (). Colloidal ZnO quantum dots in ultraviolet pillar microcavities. Opt. Express, 16, 9791.
    • Y. Gao, S. Reischmann, J. Huber, T. Hanke, R. Bratschitsch, A. Leitenstorfer, and S. Mecking. (). Encapsulating of single quantum dots into polymer particles. Colloid Polym. Sci., 286, 1329.
    • N. Janßen, K. M. Whitaker, D. R. Gamelin, and R. Bratschitsch. (). Ultrafast spin dynamics in colloidal ZnO quantum dots. Nano Lett., 8, 1991.
    • G. Balasubramanian, I. Y. Chan, R. Kolesov, M. Al-Hmoud, J. Tisler, C. Shin, C. Kim, A. Wojcik, Ph. R. Hemmer, A. Krüger, T. Hanke, A. Leitenstorfer, R. Bratschitsch, F. Jelezko, and J. Wrachtrup. (). Nanoscale imaging magnetometry with diamond spins under ambient conditions. Nature, 455, 648.
    • W. Zawadzki, P. Pfeffer, R. Bratschitsch, Z. Chen, S. T. Cundiff, B. Murdin, and C. R. Pidgeon. (). Temperature dependence of the electron spin g factor in GaAs. Phys. Rev. B, 78, 245203.

    • Z. Chen, R. Bratschitsch, S. T. Cundiff, D. R. Yakovlev, G. Karczewski, T. Wojtowicz, and J. Kossut. (). Electron spin polarization through interactions between excitons, trions, and two-dimensional electron gas. Phys. Rev. B, 75, 115320.
    • E. Biegger, M. Fonin, and U. Rüdiger, M. Beyer, N. Janßen, R. Bratschitsch, Yu. S. Dedkov. (). Defect Induced Low Temperature Ferromagnetism in Zn1-xCoxO Films. J. Appl. Phys., 101, 73904.
    • Z. Chen, S. Carter, R. Bratschitsch, P. Dawson, and S. T. Cundiff. (). Effects of disorder on electron spin dynamics in a semiconductor quantum well. Nature Physics, 3, 265.
    • M. Kahl, T. Thomay, V. Kohnle, K. Beha, J. Merlein, M. Hagner, A. Halm, J. Ziegler, T. Nann, Y. Fedutik, U. Woggon, M. Artemyev, F. Pérez-Willard, A. Leitenstorfer, and R. Bratschitsch. (). Colloidal quantum dots in all-dielectric high-Q pillar microcavities. Nano Lett., 7, 2897.

    • R. Bratschitsch, Z. Chen, S. T. Cundiff, D. R. Yakovlev, G. Karczewski, T. Wojtowicz, and J. Kossut. (). Electron spin dephasing in n-doped CdTe/(Cd, Mg) Te quantum wells. Phys. Stat. Sol. B, 243, 2290.
    • R. Bratschitsch and A. Leitenstorfer. (). Artificial atoms for quantum optics. Nature Materials, 5, 855.
    • R. Bratschitsch, Z. Chen, S. T. Cundiff, E. A. Zhukov, D. R. Yakovlev, M. Bayer, G. Karczewski, T. Wojtowicz, and J. Kossut. (). Electron spin coherence in CdTe/CdMgTe quantum wells. Appl. Phys. Lett., 89, 221113.

    • Z. Chen, R. Bratschitsch, and S. T. Cundiff. (). Interface Effects in transient Kerr spectra of a semiconductor multilayer structure. Opt. Let., 30, 2320.
    • Q. Quraishi, M. Griebel, T. Kleine-Ostmann, and R. Bratschitsch. (). Generation of phase-locked and tunable continuous-wave radiation in the terahertz regime. Opt. Lett., 30, 3231.
    • R. Bratschitsch and K. Unterrainer. (). Terahertz physics of semiconductor heterostructures. In R. D. Guenther, D. G. Steel und L. Bayvel (Eds.), Encyclopedia of Modern Optics, Academic Press (pp. 168–176). unbekannt / n.a. / unknown.

    • J. Darmo, G. Strasser, T. Müller, R. Bratschitsch, and K. Unterrainer. (). Surface-modified GaAs terahertz plasmon emitter. Appl. Phys. Lett., 81, 871–873.
    • F. Eickemeyer, K. Reimann, M. Woerner, T. Elsaesser, S. Barbieri, C. Sirtori, G. Strasser, T. Müller, R. Bratschitsch, and K. Unterrainer. (). Ultrafast Coherent Electron Transport in Semiconductor Quantum Cascade Structures. Phys. Rev. Lett., 89, 47402.
    • J. Darmo, R. Bratschitsch, T. Müller, R. Kersting, G. Strasser, and K. Unterrainer. (). Few-cycle THz generation for imaging and tomography applications. Physics in Medicine and Biology, 47, 3691–3698.

    • R. Bratschitsch, T. Müller, N. Finger, G. Strasser, K. Unterrainer, and C. Sirtori. (). Monitoring the ultrafast electric field change at a mid-infrared plasma Bragg mirror. Opt. Lett., 26, 1618–1620.
    • T. Müller, R. Bratschitsch, G. Strasser, and K. Unterrainer. (). Intersubband absorption dynamics in coupled quantum wells. Appl. Phys. Lett., 79, 2755–2757.

    • R. Kersting, R. Bratschitsch, G. Strasser, K. Unterrainer, J.N. Heyman. (). Sampling a terahertz dipole transition with subcycle time resolution. Opt. Lett., 25, 272.
    • R. Bratschitsch, T. Müller, R. Kersting, G. Strasser, and K. Unterrainer. (). Coherent THz emission from optically pumped intersubband plasmons in parabolic quantum wells. Appl. Phys. Lett., 76, 3501.
    • W. Fischler, R. Bratschitsch, R.A. Höpfel, G. Zandler, G. Strasser, and K. Unterrainer. (). The lower branch of plasmon-phonon couples modes. Semicond. Sci. Technol., 15, 813.

    • R. Bratschitsch, W. Fischler, G. Zandler, and R.A. Höpfel. (). Coherent THz Plasmons in GaAs: Transition from "pure" Plasmons to coupled Plasmon-Phonon Modes. Phys. Stat. Sol. B, 204, 64.

  • Supervised Doctoral Studies

    Niehues, IrisOptische Eigenschaften gedehnter atomar dünner Halbleiter
    Schneider, RobertUltraschnelle spintronische THz-Emitter
    Stiehm, TorstenResonant verstärkte nichtlineare Lichtemission metallischer Nanoantennen und atomar dünner Halbleiter
    Zannott, AlessandroCaustic light in nonlinear photonic media
    Tonndorf, PhilippEinzelphotonenquellen in zweidimensionalen Schichthalbleitern
    Schmidt, RobertUltraschnelle Dynamik und Manipulation von Exzitonen in atomar dünnen Halbleitern
    Rose, PatrickLight propagation in complex photonic lattices
    Hassdenteufel, AlexanderTuning the All-optical Switching Ability in Ferrimagnetic Amorphous Alloys