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17 March 2023 Cryo-compatible strain tuning of nanophotonic structures coupled to Van der Waals materials
Arnab Manna, Johannes Froech, Arka Majumdar
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Proceedings Volume PC12423, 2D Photonic Materials and Devices VI; (2023) https://doi.org/10.1117/12.2649257
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
Transition metal dichalcogenide(TMD) monolayers and their heterostructures host promising nanoscale light emitters such as single defects and intra/interlayer-excitons. By resonantly coupling these emitters to optical nanocavities, various light-matter interaction phenomena including Purcell enhancement and strong coupling emerge. However, achieving exact matching between cavity and excitonic resonances is difficult mainly because of the inability to precisely control the resonant wavelength of fabricated optical structures. In this work, we demonstrate the use of a cryogenic strain cell to continuously and reversibly tune the optical resonance of GaP nanobeam cavities over a large range. We discuss the merits and challenges of this tuning technique and report our progress in using it to study cavity coupled phenomenon of emitters in monolayer TMD.
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Arnab Manna, Johannes Froech, and Arka Majumdar "Cryo-compatible strain tuning of nanophotonic structures coupled to Van der Waals materials", Proc. SPIE PC12423, 2D Photonic Materials and Devices VI, (17 March 2023); https://doi.org/10.1117/12.2649257
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KEYWORDS
Nanophotonics
Control systems
Cryogenics
Heterojunctions
Light-matter interactions
Tolerancing
Transition metals
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