Humboldt-Universität zu Berlin - Faculty of Mathematics and Natural Sciences - Integrated Quantum Photonics

23-29/03/2025 Quantum Nanophotonics, Benasque, Spain 

Posters: Large-scale Localization and Characterization of Individual Diamond Color Centers of Deterministic Fabrication of Nanophotonic Spin-Photon Interfaces (Maarten)

Corrugated Rectangular and Triangular Photonic Crystal Nanobeams for Highly Efficient Spin-Photon Interfaces (Julian)

The Sawfish Spin-Photon Interface: Fabrication and Characterization (Marco)

Talks: Diamond nanophotonic spin-photon interfaces (Tim Schröder)

19-21/03/2025 Hasselt Diamond Workshop 2025, Hasselt, Belgium

Presentation: Large-scale Localization and Characterization of Diamond Color Centers for Deterministic Fabrication of Nanophotonic Spin-Photon Interfaces (Maarten)

Posters: Efficient spin control of tin-vacancy color centers in diamond for photonic quantum memories (Jonas)

Nanofabrication methods for quantum photonic devices based on color centers in diamond (Tommaso)

09-14/03/2025 DPG SAMoP, Bonn

Implementing the SUPER Scheme for Tin-Vacancy Spin Qubit Manipulation and Entanglement (Cem)
Measuring MHz charge dynamics in diamond with a tin-vacancy color center (Charlotta)
Nonlinear SnV-Based Electrometry for Material Science at the Atomic Lattice Scale (Gregor)
A Color Center based Scheme for the Storage and Retrieval of a Quantum Token (Yannick)

13/12/2024 Christmas Party: Bowling 

 

18-20/11/2024 EQTC 2024, Lisbon, Portugal: Tommaso Pregnolato

Poster: Nanofabrication of suspended Sawfish photonic crystal cavities in diamond

 

11/11/2024 Japanese‐German Symposium on Applications of Quantum Computers

at the Berlin Brandenburgische Akademie der Wissenschaften (BBAW), Berlin 

Presentation: Diamond spin defects as resource for photonic quantum computation (Tim Schröder)

Posters: Investigation of microwave spin control of unstrained negatively charged group-IV color centers in diamond (Mohamed Belhassen)

Generation of cluster states with group-IV color centers in diamond (Gregor Pieplow)

The Sawfish cavity: an efficient spin-photon interface for photonic quantum computing (Marco Stucki)

Large-Scale Localization and Characterization of Diamond Color Centers for Deterministic Fabrication of Nanophotonic Spin-Photon Interfaces (Maarten van der Hoeven)

 

24-27/09/2024 Swabian Summer School, Stuttgart: Jonas Wollenberg 

intensive program on advanced photonic and quantum measurements

 

 

18-20/09/2024 EACN, TU Braunschweig: Gregor Pieplow

Presentation: Creating spin-photon entanglement with group four color centers in diamond

 

16-27/09/2024 Quantum 2024, Bari, Italy: Domenica Bermeo

Summer School on Quantum Optical Technologies

Poster: Hetero-integration of diamond nanostructures on AlGaN-based photonic circuits

 

11-13/09/2024 Workshop on Quantum Repeaters and Networks, Montreux, Switzerland

Poster: The Sawfish cavity: an efficient spin-photon interface for quantum repeater applications (Marco Stucki)

 

02-04/09/2024 Arc­ti­que Pho­QS, Paderborn

Summer School on Cryogenic Temperatures Integrated Quantum Electronics (Arctique) with Gregor, Tom and Yannick 

Presentation: Creating and Applying Photonic Cluster States: Advances and Techniques (Gregor Pieplow)

Poster: Optimal Control Aspects for Cluster State Generation with Group-IV Color Centers in Diamond (Tom Ben Dor and Yannick Strocka)

 

07-09/08/2024 Group Trip to Lake Blossin 

Volleyball, Kayak and a lot of FUN! 

 

15-18/07/2024 BOS.QT Retreat, TU Berlin

with Cem, Kilian, Julian, Maarten

Maartens poster: "Large-Scale Localization and Characterization of Diamond Color Centers for Deterministic Fabrication of Nanophotonic Spin-Photon Interfaces"

 

12/07/2024 Friday Light Talks, Berlin: Charlotta Gurr

Monitoring charge dynamics in diamond with MHz acquisition rates (oral presentation)

 

22/06/2024 Long Night of the Sciences, Berlin

we were delighted to present our research to the general public with exciting experiments

 

18-24/06/2024 Siegman International School, Dublin, Ireland: Cem Güney Torun

Summer school on Lasers 

 

03-07/06/2024 Summer School at Zuse Institute Berlin: Tom Ben For

Workshop on Tensor Methods for Quantum Simulation 2024

 

20-31/05/2024 Quantum Information Spring School, Les Houches, France

Mohamed and Kilian have participated

 

05-10/05/2024 CLEO, Charlotte, North Caroline, USA

with Tim, Gregor, Sinan, Mohamed, Marco and Julian 

Julian: Integrated Magnetic Field Camera Based on Infrared Absorption ODMR Mediated by Diamond NV Centers

Marco: The Sawfish cavity: an efficient spin-photon interface for quantum repeater applications (oral presentation)

 

26/04/2024 - Seminar: Sophia Economou

Spin-photon interfaces: control and distribution of entanglement

 

17-19/04/2024 AMPD 2024, Zuse Institute Berlin

inivited talk: 'Sawfish' Photonic Crystal Nanostructures for Near-Unity Emitter-to-Waveguide Coupling (Julian Bopp)

poster: hetero-integration of diamond nanostructures on AlGaN-based photonic circuits (Domenica Bermeo Alvaro)

 

18-22/03/2024 QD2024, Munich

Tommaso, Mustafa, Gregor participated on the 12th International Conference on Quantum Dots 

Poster: Nanofabrication of suspended Sawfish photonic crystal cavities in diamond (Tommaso)

17-22/03/2024 DPG SKM 2024, TU Berlin: Cem, Maarten 

Maartens Poster: "Photonic Integration of Diamond Qubits into Hybrid Quantum Circuits"

 

10-15/03/2024 DPG SAMOP, Freiburg

with Mohamed, Gregor and Julian 

Julian: Integrated Magnetic Field Camera Based on Diamond NV Center Infrared Absorption ODMR

 

28/02/2024 - Hasselt Diamond Workshop - SBDD XXVIII

• Marco Stucki: Sawfish photonic crystal cavities with Q-factors of several thousand (talk)
• Tommaso Pregnolato: Nanofabrication methods for suspended “Sawfish” cavities in diamond (poster)
• Kilian Unterguggenberger: Diamond surface preparation for optically coherent NV centers in nanostructures (poster)

 

 

12/2023 Christmas Party 

 

7-8/12/2023 EQEP 2023, Paderborn: Tim, Kilian, Maarten 

international workshop on “Engineering of Quantum Emitter Properties”

Maartens Poster: "Photonic Integration of Diamond Qubits into Hybrid Quantum Circuits"

 

13/11/2023 - Einstein Research Unit Quantum Devices - 3rd Update Meeting

• Sinan Gündoğdu and Sofia Pazzagli: AlGaN Nanophotonic Devices: On-Chip Fabrication and Characterization (poster)
• Maarten van der Hoeven: Photonic Integration of Diamond Qubits into Hybrid Circuits (poster)
• Kilian Unterguggenberger: Towards optically coherent color centers in diamond nanocavities (poster)

 

10/2023 - European Quantum Technologies Conference, Hannover, Germany

• Laura Orphal-Kobin: Optically coherent NV defect centers in diamond nanostructures for enhanced entanglement generation (talk)
• Gregor Pieplow: Generating entangled photonic resource states for quantum network applications with color centers in diamond (poster)
• Tommaso Pregnolato: Nanofabrication protocols for suspended “Sawfish” photonic crystal cavities in diamond (poster)
• Julian Bopp: Magnetic field camera based on infrared absorption ODMR mediated by diamond NV centers (poster)
• Cem Güney Torun: Zero-Magnetic Field Quantum Control and Coherence Measurements of a Tin-Vacancy Color Center in a Diamond Nanopillar as a Spin-Photon Interface (poster)

 

 

10/2023 - IOP-HU Early Career Researcher Conference on Condensed Matter Physics, Liyang, China

Alok Gokhale: Diamond nanocavities as building blocks for spin-photon interfaces in quantum repeaters

Cem Güney Torun: Optical control of tin-vacancy color centers in diamond nanostructures

 

08/2023 - Book a Scientist

Tim Schröder represented us again at Book a Scientist to answer your questions on our research. Thank you for your interest!

 

08/2023 - Group Retreat to Zingst, Baltic Sea

 

06/2023 - CLEO Europe, Munich

• Sinan Gündoğdu: Fabrication of AlGaN Integrated Photonic Devices
• Gregor Pieplow: Coherent Raman spin control for the generation of high fidelity entangled photonic states with group-IV vacancies
• Marco Stucki: Diamond ”Sawfish” photonic crystal cavities
• Cem Güney Torun: Quantum Control and Coherence of Orbital Levels of a Tin-Vacancy Color Center in a Diamond Nanopillar

 

06/2023 - Workshop on Entanglement Assisted Communication Networks, Taipeh, Taiwan

• Gregor Pieplow: Generating entangled photonic resource states for quantum network applications with color centers in diamond

 

17/06/2023 - Long Night of Sciences

 

03/2023 - CLEO

• Julian Bopp, Talk: ‘Sawfish’ Spin-Photon Interface for Near-Unity Emitter-to-Waveguide Coupling
• Laura Orphal-Kobin, Talk: Overcoming Spectral Diffusion for Enhanced Spin-Photon Entanglement using NV Defect Centers in Diamond Nanostructures

 

03/2023 - National Conference on IT-Security Research

• Tim Schröder, Talk

 

03/2023 - DPG Spring Meeting (SAMOP)

• Felipe Perona, Talk: Infrared laser absorption magnetometry with Ensembles of Nitrogen-Vacancy centres
• Gregor Pieplow, Talk: Raman control for ultrahigh fidelity spin gates for the generation of large entangled photonic states with group-IV vacancies
• Tommaso Pregnolato, Talk: Fabrication of suspended "Sawfish" photonic crystal cavities in diamond
• Laura Orphal-Kobin, Talk: Overcoming spectral diffusion of NV defect centers in diamond nanostructures for enhanced entanglement generation
• Cem Güney Torun, Talk: Probing the Orbital Coherence of a Tin-Vacancy Center in a Diamond Nanopillar via Coherent Population Trapping
• Maarten van der Hoeven, Talk: High-precision localization of color centers in diamond for deterministic coupling to quantum photonic nanostructures
• Franziska Herrmann, Poster: Development of a stable, compact and cost-effective laser light source for resonant control of tin-vacancy color centres

 

03/2023 - APS March Meeting

• Sinan Gündoğdu, Talk: 3D Direct Laser Writing without Femtosecond Lasers

 

03/2023 - Hasselt Diamond Workshop

• Tommaso Pregnolato, Poster: Nanofabrication protocols for suspended "Sawfish" photonic crystal cavities in diamond
• Marco Stucki, Poster: Fabrication of "Sawfish" vs "hole"-based photonic crystal cavities: a comparative investigation

 

12/2022 - Christmas Party

Laser tag, vegan burgers and drinks!

 

 

10/2022 - Frontiers in Optics + Laser Science, Rochester, NY

• Cem Güney Torun, Talk: Orbital Coherent Population Trapping with a Tin-Vacancy Color Center

 

23/09/2022 - Climate Strike

Members of IQP participated in the Climate Strike in Berlin to demand actions against a climate catastrophe!

 

09/2022 - SFB BeyondC Conference

• Julian Bopp, Poster: "Robust near-unity cavity-to-fiber coupling of light emitted by diamond color centers embedded in 'Sawfish' photonic crystal cavities"

 

08/2022 - Group Retreat, Elbsandsteingebirge

 

02/07/2022 - Long Night of Sciences

Can you guide light with jet of water? How do you build your own spectrometer out of a CD and a piece of cardboard? We really enjoyed answering these and more of your questions during the Long Night of Sciences. Thank you for coming and see you next year!

 

20/06/22 - QPIS Kickoff Event

Launch of the QPIS project for the development of a Quanten-Photonisch Integrierter Skalierbarer Speicher (QPIS)

04/2022 - Grand Challenge der Quantenkommunikation

• Tim Schröder, Talk: Kickoff
• Gregor Pieplow, Attendance
• Jonas Wollenberg, Attendance

 

09/2021 - DPG SAMOP Meeting

• Cem Güney Torun, Poster: "Optimized diamond inverted nanocones for enhanced color center to fiber coupling"
• Franziska Herrmann, Poster: "Construction of a reliable laser light source for resonant excitation of tin-vacany centers"
• Kilian Unterguggenberger, Poster: "Generation of Optical Pulses for Solid-State Qubit Control"

 

26/08/2021 - Quantum Future Award

• Cem Güney Torun, Finalist and Winner of Audience Award for Best Pitch

 

08/2021 - Group Retreat, Spreewald

 

07/07/2021 - Visit of the Dutch Royals

Laura was given the honor to meet the Dutch royals at TU Berlin and introduce the BOS.QT graduate school to Queen Máxima.

© Flickfeeder

18/03/2021 - Book a Scientist

Speeddating with Science - Tim Schröder participated as an expert and answered your questions on our research with -269 °C cold diamonds.

 

03/2021 - jugend forscht Berlin

• Julian Bopp, Juror

 

02/2021 - Snow in Berlin

More than enough to build a snow dinosaur!

 

17/12/2020 - Online Christmas Party

Everyone at IQP had a lot of fun playing games during our online christmas party. Check out our impressive performance at Zoom-Mosaic!

 

 

10/2020 - BOS.QT Retreat, Max-Born-Institut, Berlin, Germany

• Julian Bopp, Poster: "Photonic Integration of Diamond Nanostructures into On-Chip Waveguides"
• Laura Orphal-Kobin, Poster: "Spectral properties of single NV defect centers in diamond nanopillars"

   

 

01/10/2020 - QBN Meeting on Quantum Sensing

• Felipe Perona, Attendance
• Julian Bopp, Attendance

 

09/2020 - Quantum Symposium (PicoQuant) on Single Photon based Quantum Technologies

• Julian Bopp, Attendance
• Laura Orphal-Kobin, Poster: "Spectral properties of single NV defect centers in diamond nanopillars"
• Cem Güney Torun, Poster: "FE Simulation of a Dipole Emitter Coupled to an Inverted Nanocone"

 

02/2020 - Workshop on Theoretical and Numerical Tools for Nanophotonics

• Cem Güney Torun, Poster: "FE Simulation of a Dipole Emitter Coupled to an Inverted Diamond Nanocone"

 

18/12/2019 - Group Excursion: Christmas Dinner and Bowling

 

10/2019 - Symposium IRIS 2019, Berlin, Germany

• Tim Schröder, Talk: "Communication Links for the Quantum Internet of Things"
• Laura Orphal-Kobin, Poster: "Reduction of spectral diffusion by applying a sequence of optical control pulses"
• Cem Güney Torun, Poster: "Simulations of Dipole Emitters Coupled to Inverted Cone Nanopillar Diamond Structures"

 

10/2019 - Junges Kolleg (Bayerische Akademie der Wissershaften) Workshop, Recent Advances in Photonic Quantum Science and Technology, Munich, Germany

• Tim Schröder, Talk: "Nanophotonic Spin Systems for Quantum Communication"
• Joseph Munns, Talk: "Optimisation of Entanglement Transfer Between Remote Nodes in Photonic Quantum Communication"

 

09/2019 - DPG Fall Meeting on Quantum Science and Information Technologies, Freiburg, Germany

• Laura Orphal-Kobin, Poster: "Reduction of spectral diffusion by applying a sequence of optical control pulses"

 

20/08/2019 - Group Excursion: Sailing on the Spree and Visit to an Adventure Park

 

07/2019 - NanoQI'19 Summer School, Donostia-San Sebastián, Spain

• Laura Orphal-Kobin, Attendance

 

07/2019 - Lindau Nobel Laureate Meeting, Lindau, Germany

• Laura Orphal-Kobin, Attendance

 

05/2019 - Quantum Symposium hosted by PicoQuant, Berlin, Germany

• Laura Orphal-Kobin, Poster: "Reduction of spectral diffusion by applying a sequence of optical control pulses" 

 

05/2019 - Symposium Latsis 2019 on Diamond Photonics - Physics, Technologies & Applications, Lausanne, Switzerland

• Joseph Munns, Poster: "Optimisation of Entanglement Transfer Between Remote Nodes in Photonic Quantum Communication"

03/2019 - WE-Heraeus-Seminar: Diamond Quantum Technologies, Bad Honnef, Germany

• Joseph Munns, Poster: "Towards mode manipulation for optimally interfacing disparate defect centres in diamond"
• Laura Orphal-Kobin, Poster: "Reduction of spectral diffusion by applying a sequence of optical control pulses"