3D Printed Optical Waveguide Structures with Microdiamonds containing NV Centers (Marina Peters, Thursday, 9.3., 16:30, Q59.62)
Hope to see you at our posters and talks!
DPG - Spring Meetings
Starting next week, our group will again contribute to three out of the four DPG spring meetings this year!
Matthias (Q11.2), Jan (Q31.8), Marco (Q38.2), and Alex (Q53.4) will have oral contributions, Connor (Q40.11) and Tobias (Q41.12) will present posters on the SAMOP meeting (14.-18.3.). Paul (DD3.3) and Adrian (DD17.1) will have oral contributions and Jonas (DD37.2) will present a poster on the SMuK meeting (21.-25.3.). And Anthony will present our joint work with the AG Wurstbauer on the SKM meeting, which was shifted to September.
EIN Quantum NRW
North Rhine-Westphalia strengthens Education, Innovation, and Networking (EIN) in quantum technologies. The University of Münster is among the twelve founding members of the "EIN Quantum NRW" network, which counts with strong endorsement from Hendirk Wüst, Minister-President of North Rhine-Westphalia as well as the Ministry of Culture and Science and the Ministry of Economics, Innovation, Digitization, and Energy.
Alex and Tobias report the integration of colloidal quantum dots with nanophotonic waveguides in ACS Photonics with contributions from the AG Bratschitsch and AG Pernice. They managed to both excite the quantum dots and collect single fluorescence photons via Ta2O5-on-insulator waveguides and report on how the approach can be scaled to larger system size.
SNSPDs and Modulators on Lithium Niobate
Emma, Martin, Francesco and co-workers report the integration of high-speed modulators and superconducting nanowire single photon detectors on the promising Lithium Niobate-on-Insulator platform. The article in Nature Communications was selected as a Editor's highlight in the "Optics and Photonics" section of the journal!
I am very honored to receive the annual Teaching Prize in the Physics Department for three of the classes I taught in the 2020-2021 winter and summer terms on "Quantum Computers and Quantum Simulators", "Quantum Communication and Quantum Sensing" within the Master studies, and "Atomic and Molecular Physics" within the Bachelor studies. For the latter I am very grateful to Prof. Michael Klasen, who taught the 'Quantum Physics' class of the joint module, and to Fabian Joswig & all tutors who significantly contributed to the positive overall course experience.
I further congratulate Prof. Cornelia Denz who was awarded a special prize in recognition of her longstanding and exceptional commitment to promoting gender equality, student outreach, and career & vocational guidance at the department and beyond.
The 9th NRW Nano Conference is about to kick off (21.-23- April 2021) with contributions from many local partners. Check out Martin's talk on "Scaling up Photonic Quantum Technologies: Waveguide-Integrated Superconducting Nanowire Single-Photon Detectors on Monolithic Chips" in the Quantum Technology session (5A) on Friday starting at 10:40 with talks by Fedor Jelezko (Ulm) and Kristel Michielsen (Jülich). Alex, Helge and Fabian will present posters on the "Integration of nano-scale quantum emitters with nanophotonic circuits","Hybrid interfacing methods for integrated nanophotonic circuitry" and "On-chip Quantum Communication with Single-Photon Detectors". Also make sure to check out Pixel Photonics presenting the commercialization of Single-Photon Sensors at the CeNTech Exhibition Booth!
APL Special Issue
Congratulations to Martin, Fabian and all co-authors for showing that waveguide-integrated SNSPDs can have high system detection efficiency of up to 73% over an extremely broad bandwidth from visible (532 nm) to near-infrared (1640 nm) wavelengths. Their results are published in APL's special issue on "Non-classical Light Emitters and Single-Photon Detectors".
Ultrafast Quantum Key Distribution
Fabian, Helge and Martin's work on QKD at 2.5 GHz clock rate (2.5 MBit/s secrete key rate) is published in NPJ Quantum Information! The detectors (SNSPDs), delay lines and all photonic circuitry are completely integrated on a chip, with great potential for massively scaling up both the number of physical and wavelength channels. Congratulations!
Congratulations to Philip Schrinner for successfullydefending his PhD-thesis on the "Integration of Single Photon Emitters with Photonic Integrated Circuits on Silicon Chips"! We owe a lot to your efforts for setting up the labs as the group's first PhD student, your scienific contributions and your positive attitude. Thank you and all the best for your future endeavors!
Thomas published his nice work on electrostatically-actuated opto-mechanical phase shifters in Optics Express! He achieved a record 13 π phase shift, insertion loss of only 0.5 dB and 31 dB extinction ratio in a Mach-Zehnder Interferometer configuration, which allowed sub-μs switching. With a half wave voltage of only Vπ=2 V the half-wave voltage length product is as low as 0.042 Vcm!
Martin and our former Master students Simon and Lukas published their work on integrating Superconducting Nanowire Single Photon Detectors (SNSPDs) with Tantalum Pentoxide (Ta2O5) nanophotonic circuits in Scientific Reports today: check it out!
The Quantum Dinner
Check out the Quantum Dinner lecture series, organized by the AGyouLeap of the German Physical Society (DPG) with eleven exciting talks from leading groups in quantum science and technology. The lectures are held at 17:15 CET between October 5th and 22nd.
Martin will present our group's work at CLEO 2020 in San Jose (USA). We got papers on our tantalum pentoxide work (SM30.4) and the SNSPD-array (SM40.5, together with the QuPAD-Team) accepted, both of which Martin will present in the "Quantum Integrated Photonics I & II" sessions, respectively.
Martin's conference trip to California will be supported by the German Academic Exchange Service (DAAD), who selected him in a competitive process! Congratulations!
Quantum Technologies in North Rhine-Westphalia
The NanoMicroMaterialsPhotonic.NRW state cluster (NMWP.NRW) features efforts in quantum technologies within the state of North Rhine Westphalia in their biannual magazine: check out the article about our work on pages 58-59 of the NMWP-Magazin 01.2020.
Matvey's & Martin's work published in Nature Communications!
The year is off to a good start: Matvey's and Martin's work on phase-slip processes in YBCO nanowires was published in Nature Communications!
We observe energy level quantization in a high-temperature superconductor with finite critical current for the first time. Our nanowires reach quality factors in excess of 10 billion and excited state lifetimes of more than 20 ms, which are exciting prospects for future implementations of superconducting quantum computers that will need to execute very large numbers of gate operations.
We further observe that the absorption of single-photons in our YBCO-nanowires changes their quantum state, which we hope to exploit in future high-temperature superconducting nanowire single-photon detectors (SNSPDs).
Martin & Jonas awarded with Cells in Motion Pilot Project!
Congrats to Martin and AG Schuck alumnus Jonas for being awarded their own funding for a Pilot Project on "Confocal microscope imaging of immune cells using superconducting single-photon detectors" within the Cells in Motion (CiM) interfaculty center! The project will be conducted in collaboration with Linda Groeneweg from the AG Alonso Gonzalez at the Insitute for Immunology.
DPG-Spring Meeting 2020
This year work from the AG Schuck will be presented at all three DPG Spring Meetings! We have a total of 11 contributions.
Martin's micrograph of a waveguide integrated superconducting nanowire single photon detector device was selected for one of the Raith micrograph awards. Congratulations Martin!
Martin and Matthias presenting at SPW 2019
Martin and Matthias are presenting our work on waveguide-integrated MoSi-SNSPDs and the QuPAD-project at the Single-Photon Workshop 2019 in Milano. Check out their posters in case you are around!
Helge's & Alexander's paper is published!
Our joint publication with the group of Wolfram Pernice on efficient and broadband optical fiber-chip interfaces produced in 3D direct laser writing is now published in Optics Letters. Check it out!
Philip's & Jan's paper is published!
Our joint publication with the group of Doris Reiter, featuring Philip's work on photonic crystal cavities for integrating quantum emitters into nanophotonic networks, is now published in Advanced Quantum Technologies. Check it out!
In times where a growing number of people, including political leadership, question the scientific method, the EU Commission plans to withdraw explicit representation of "Research" and "Education" from their Portfolio. If you want to join in supporting large parts of Europe's scientific community asking the Presidents of the European Parliament and the European Commission to reconsider their plans, please sign this petition.
New closed-cycle cryostat
Today our partners from Entropy installed a new closed-cycle He-cryostat in our labs at the Center for SoftNanoscience (SoN). The system will be used for developing waveguide-integrated Superconducting Nanowire Single Photon Detectors for the QuPAD-project (QuPAD).
QuPAD project in the news
Our project on ultrafast quantum key distribution on parallel detection channels (QuPAD), for which we collaborate with PicoQuant (Berlin) and Entropy (Munich), funded by the Federal Ministry of Education and Research (BMBF), is in the news: Check it out!
Welcome Prof. Yoshioka!
We welcome Prof. Dr. Hiroaki Yoshioka from the Graduate School of Information Science and Electrical Engineering (ISEE) at Kyushu University, Japan! Prof. Yoshioka is supported by the program "Progress 100, Global Leadership Training for Young Researchers" and will work with us on integrating Lasers on nanophotonic chips. Welcome Professor Yoshioka!
Simone's review on waveguide-integrated superconducting nanowire single-photon detectors (SNSPD) was published in Nanophotonics. Check out the open access article for all you ever wanted to know about SNSPD integrated with nanophotonic devices.
Martin Wolff joins the group as PhD-student. Welcome Martin!
Blockchain - Chancen, Recht und Regulierung
Jun.-Prof. N. Guggenberger of Münster's Institute for Information, Telecommunication and Media Law (ITM) and the RWTÜV-Stiftung invite for an event discussing opportunities, legislation and regulation of Blockchain technology on November 7th at Erbdrostenhof Münster. We will also be discussing how quantum technology could affect Blockchain implementations: register here!
Read a news article about how the event went: here!
Highlights der Physik
Visit us at the "Highlights der Physik" science fair from September 19.-23. on Münster's Schlossplatz!
In collaboration with The Institute of Photonic Sciences - ICFO (Barcelona, Spain) and qutools GmbH (Munich, Germany) we are presenting an interactive experiment where you can test the predictions of quantum physics yourself!
Opening for a PhD-position
We are looking for a new PhD candidate to work on nanophotonics and superconducting single-photon detectors: check out our Jobs section and apply before September 3rd!
Winners of the Physicists Feud!
The AG Schuck achieves eternal glory at the "Physicists Feud"! Congratulations Philip, René, Rene, Matthias and our guest star Wolfram on winning the cup!
Philip secures travel funds from the DAAD!
Philip receives his own funding from the PROMOS program of the DAAD (German academic exchange service) for traveling to a summer school. Congratulations!
PhD-Position and Master-Thesis projects avaialble!
We have openings for a PhD-Position and Master-Thesis projects. The PhD-work will be concerned with waveguide-coupled superconducting single-photon detectors and nano-photonic quantum circuits. Candidates are strongly encouraged to apply for Open PhD Fellowships from the Graduate School "Molecules and Interfaces" (GSMI). The application deadline is April 30, 2017. Several Master-Thesis projects are available both for physics and Lehramt/didactics students. Check out our Jobs section and contact us!
Discussing quantum computing at the Institute for Information, Telecommunication and Media Law (ITM)
Carsten speaks at the ITM (Faculty of law) about how quantum computers affect IT-security. Thank you Prof. N. Guggenberger for the invitation and the interesting discussion across faculty boundaries!
Welcome Philip Schrinner!
Philip Schrinner (MSc.) from the RWTH Aachen joins the group as PhD-student. Welcome Philip!
Inaugural lecture of Jun.-Prof. Doris Reiter & Jun.-Prof. Carsten Schuck.
Jun.-Prof. Doris Reiter and Jun.-Prof. Carsten Schuck give their inaugural lectures at the Department Colloquium.
Doris presents her work on "Ultrafast optics in nano-structured solids" and
Carsten speaks about "Integrated Quantum Photonics on Silicon Chips".
Discussing Nanotechnology with political leaders.
During a visit to ASML Inc. Carsten meets with Dutch Prime Minister Mark Rutte, Dutch Minister of Education, Culture and Science Jet Bussemaker, German Secretary of State Dr. Georg Schütte and fellow physicist & German Chancellor Angela Merkel.
Our observation of quantum interference on a silicon chip is on the cover of the Yale Scientific