Quantum Nano Photonics - Prof. Dr. M. Benyoucef

Secretary

Institute of Nanostructure Technologies and Analytics (INA) / Institute of Physics
Heinrich-Plett-Straße 40, 34132 Kassel
Büro: INA, Raum 2112
Telefon: +49-(0)561 804-4553
E-mail: m.benyoucef[at]physik[dot]uni-kassel[dot]de

Secretary: Sandra Berner
E-Mail: QNP-Sekretariat[at]ina.uni-kassel[dot]de
Telefon +49 561 804-4085

Institute of Nanostructure Technologies and Analytics (INA)

Opportunities for Bachelor/Master/PhD Students and Postdocs

Research in the department focuses on solid-state quantum systems for quantum optics and quantum communication, and molecular quantum systems. The core competence is the fabrication, characterisation and embedding of quantum emitters in photonic structures (e.g. microcavities). A variety of clean room fabrication methods, such as molecular beam epitaxy and/or electron beam lithography, can be used to create nanostructures for nanophotonic applications.

In a bottom-up approach using molecular beam epitaxy, we develop novel and advanced quantum architectures on different substrates (Si, GaAs, and InP) and investigate their quantum optics properties. With the top-down approach, we fabricate photonic nanostructures and semiconductor devices through high-resolution electron beam lithography and etching techniques. The fabricated nanostructures emit at different wavelengths — particularly in the telecom C-band. An innovative hybrid photonics platform can be created by integrating III-V semiconductor light sources into silicon, which is one of the key technologies combining the best of both materials. Additionally, we develop charged devices for spin manipulation. For molecular systems, we aim to create a platform that addresses miniaturisation and scalability challenges, while our work on 2D materials focuses on integrated photonic devices.

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Photonic Quantum Technologies: Science and Applications, John Wiley & Sons (2023).

The aim here is to bring together scientists with different expertise from across different disciplines. Fundamentals and applications of photonic quantum technologies are covered. This book provides readers with cutting-edge knowledge they need to understand and develop practical quantum systems in one place. It also gives a comprehensive overview of quantum technologies, including discussions of the second quantum revolution (by Nobel Laureate Alain Aspect). The development of quantum technologies involving artificial atoms, color centers, molecules, atoms, and ions is discussed.

Check Out Our Latest Special Issue (2025)!

We are happy to start 2025 with the release of a special issue on Recent Advances in Photonic Quantum Technologies, published in the Journal of Advanced Quantum Technology in celebration of 100 years of quantum science!

This special issue provides an in-depth exploration of recent advancements in the dynamic and rapidly progressing field of photonic quantum systems. Featuring 20 contributions: 3 Perspectives, 4 Reviews, and 13 Research Articles. The collection dives into diverse material systems-spanning from atom-based to artificial atom quantum emitters. More detail about the selection of papers can be found in Adv. Quantum Technol. 8, 2400628 (2025).

Special Issue (2020): Highlight

This Special Issue provides an overview of recent exciting developments in the field of photonic quantum technologies, serving to keep researchers up-to-date with the latest progress and spurring on new concepts in this field. The studied material systems range from molecules to semiconductor quantum emitters. A major challenge is the design of telecom photon emitters with high efficiency, good yield, spectral purity, stability and the possibility of mass manufacture. This special issue features an extensive collection of 22 articles. More detail about the selection of papers can be found in Adv. Quantum Technol. 2, 2000007 (2020).

Quantum Dots and Molecules

Photonic structures