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9 March 2024 Enhancing light-matter interaction in quantum dot through engineering electromagnetic fields
Guiru Gu, Xuejun Lu
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Proceedings Volume PC12895, Quantum Sensing and Nano Electronics and Photonics XX; PC1289509 (2024) https://doi.org/10.1117/12.2692394
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
Highly sensitive infrared photodetectors are needed in numerous sensing and imaging applications. In this paper, we report strong light-matter interaction at a quantum dot (QD) scale and the induced significant enhancement in photosensitivity and quantum efficiency. A plasmonic perfect absorber (PPA) cavity is fabricated with embedded quantum dots. The PPA cavity is designed to resonate with the intersubband transitions in quantum dots. The E-field overlaps with the QDs plus the energy resonance induce the strong light-matter interactions. Detailed analysis and experimental results will be presented.
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Guiru Gu and Xuejun Lu "Enhancing light-matter interaction in quantum dot through engineering electromagnetic fields", Proc. SPIE PC12895, Quantum Sensing and Nano Electronics and Photonics XX, PC1289509 (9 March 2024); https://doi.org/10.1117/12.2692394
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KEYWORDS
Quantum dots
Light-matter interactions
Infrared imaging
Infrared photography
Infrared radiation
Photodetectors
Quantum enhancement
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