AA2 – Materials, Light, Devices



Tailored Entangled Photon Sources for Quantum Technology

Project Heads

Sven Burger, Stephan Reitzenstein

Project Members

Felix Binkowski

Project Duration

01.04.2022 − 31.03.2025

Located at



The project aims at developing and employing numerical methods for simulation and optimization of coupled emitter – cavity systems, and to use these methods for designing systems of QDs coupled to integrated, high-Q microcavities for state engineering. Further we aim at coupling efficiency enhancement for integrated, waveguide-coupled setups. A main goal is the investigation and development of contour integration based methods for eigenvalue solvers and for eigenmode expansion, and their application to topical devices for photonic quantum technology. A schematics of a contour integration based modal expansion is depicted in Fig. 1.

First research results and results from preliminary work include the numerical optimization of fiber-coupled single-photon sources [1], a new method to compute eigenvalue sensitivities [2], as well as applications to systems of emitters and plasmonic and nanooptical resonators [3,4,5,6].

Related Publications

  1. Numerical optimization of single-mode fiber-coupled single-photon sources based on semiconductor quantum dots, Lucas Bremer, Carlos Jimenez, Simon Thiele, Ksenia Weber, Tobias Huber, Sven Rodt, Alois Herkommer, Sven Burger, Sven Höfling, Harald Giessen, Stephan Reitzenstein. Opt. Express 30, 15913 (2022)
  2. Computation of eigenfrequency sensitivities using Riesz projections for efficient optimization of nanophotonic resonators, Felix Binkowski, Fridtjof Betz, Martin Hammerschmidt, Philipp-Immanuel Schneider, Lin Zschiedrich, Sven Burger, arXiv: 2203.11101 (2022)
  3. Crossing of the branch cut: the topological origin of a universal 2π-phase retardation in non-Hermitian metasurface, Remi Colom, Elena Mikheeva, Karim Achouri, Jesus Zuniga-Perez, Nicolas Bonod, Olivier J. F. Martin, Sven Burger, Patrice Genevet, arXiv:2202.05632 (2022)
  4. Enhanced Purcell factor for nanoantennas supporting interfering resonances, Remi Colom, Felix Binkowski, Fridtjof Betz, Yuri Kivshar, Sven Burger, Phys. Rev. Research, accepted (2022)
  5. Chiral bio-inspired plasmonics: a paradigm shift for optical activity and photochemistry, O. Avalos-Ovando, et al., ACS Photonics, accepted (2022)
  6. Plasmonic nanocrystals with complex shapes for photocatalysis and growth: Contrasting anisotropic hot-electron generation with the photothermal effect, Artur Movsesyan, Eva Yazmin Santiago, Sven Burger, Miguel A. Correa-Duarte, Lucas V. Besteiro, Zhiming Wang, Alexander O. Govorov, Adv. Opt. Mater. (2022)

Related Pictures

Fig. 1. Schematics: Contour integrations in the complex eigenvalue plane. The contours (dashed lines) encircling resonance frequencies (red crosses) allow to determine the corresponding modal fields, the outer contour (solid line) allows for evaluating the background contribution to the modal expansion of the field caused by the emitter at a real frequency.