TRR 142 - Nonlinear coupling of interlayer excitons in van der Waals heterostructures to plasmonic and dielectric nanocavities (A08)


The main focus of project A08 is on interlayer excitons trapped in the controllable superlattices that naturally arise in Moiré patterns. We will study the behavior of interlayer excitons as single-photon emitters, and how it is influenced by their quantum confinement and by the orientation of their electric dipole. Then, we will explore strategies to increase the quantum yield of single-photon emitters by optimizing their electric dipole and by coupling them to plasmonic/dielectric nanocavities. These studies will be performed by combining photoemission electron spectroscopy, cryogenic micro-photoluminescence spectroscopy and correlation measurements.

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Research profile area:
Optoelectronics and Photonics
Project type:
Project duration:
01/2018 - 12/2025
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Principal Investigators

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Prof. Dr. Thomas Zentgraf

Ultrafast Nanophotonics

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Prof. Dr. Klaus Jöns

Hybrid Quantum Photonic Devices

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Mirko Cinchetti

Technische Universität Dortmund

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Nonlinear Bicolor Holography Using Plasmonic Metasurfaces
D. Frese, Q. Wei, Y. Wang, M. Cinchetti, L. Huang, T. Zentgraf, ACS Photonics 8 (2021) 1013–1019.
Nonlinear metasurface combining telecom-range intersubband transitions in GaN/AlN quantum wells with resonant plasmonic antenna arrays
J. Mundry, F. Spreyer, V. Jmerik, S. Ivanov, T. Zentgraf, M. Betz, Optical Materials Express 11 (2021).
A wavelength and polarization selective photon sieve for holographic applications
D. Frese, B. Sain, H. Zhou, Y. Wang, L. Huang, T. Zentgraf, Nanophotonics 10 (2021) 4543–4550.
Extremely low-energy ARPES of quantum well states in cubic-GaN/AlN and GaAs/AlGaAs heterostructures
M. Hajlaoui, S. Ponzoni, M. Deppe, T. Henksmeier, D.J. As, D. Reuter, T. Zentgraf, G. Springholz, C.M. Schneider, S. Cramm, M. Cinchetti, Scientific Reports 11 (2021).
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