AA2 – Material, Light, Devices

Project

AA2-14*

Chiral Light-Matter Interaction for Quantum Photonic Devices

Project Heads

Sven Burger, Stephan Reitzenstein

Project Members

Lilli Kuen

Project Duration

01.01.2021 − 31.12.2021

Located at

ZIB

Description

The objective of the project is to investigate and apply numerical methods for the simulation of chiral light-matter interaction in nanostructures. The main goal is the development of contour integration based methods and their application to topical devices for photonic quantum technology.

We plan to investigate the coupling of quantum dot single photon sources and other sources to experimentally realizable chiral nanoresonators. However, resonant photonic nanostructures typically support a large number of eigenmodes with complex properties, including electromagnetic (e-m) chirality density, quality-factor and mode volume. The interaction of light sources with such multimodal resonators needs to be accurately quantified for interpreting experimental results and for design purposes. For achieving near unity coupling efficiency, the various experimentally accessible parameters of the experimental setups need to be optimized.

First research results of this project include the investigation of long- and short-ranged chiral, electromagnetic interactions in plasmonic nano-assemblies [1, 2] as well as the investigation of coupled quantum dot – waveguide systems [3]. A typical, resonant near field distribution in a chiral nanoplasmonic setup [1] is shown in Figure 1.

Related Publications

  1. Long- and Short-Ranged Chiral Interactions in DNA Assembled Plasmonic Chains, K. Martens, F. Binkowski, L. N. Nguyen, L. Hu, A. O. Govorov, S. Burger, T. Liedl. Nat. Commun. 12, 2025 (2021)
  2. Chiral generation of hot carriers for polarization-sensitive plasmonic photocatalysis with hybrid nanostructures, preprint (2021)
  3. Deterministically fabricated quantum dot – waveguide systems for on-chip quantum optics, P. Schnauber, et al., Proc. SPIE 11806, 118060G (2021)

Related Pictures

Figure 1: Top: A 40nm gold sphere induces plasmonic coupling between two 50nm long gold rods that are arranged in a chiral fashion [1]. Bottom: Corresponding simulated plasmonic field distribution [Top SEM image: T. Liedl, bottom image: F. Binkowski].