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3 October 2024 Linear and nonlinear optics of Si at the nanoscale
Eric O. Potma, Dmitry Fishman, David Knez, Jovany Merham
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Proceedings Volume 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII; 131390D (2024) https://doi.org/10.1117/12.3027717
Event: Optical Engineering + Applications, 2024, San Diego, California, United States
Abstract
Silicon is a ubiquitous material in electronics, yet its implementation in opto-electronic devices is significantly less prominent due to its underwhelming optical properties compared to other semiconducting materials. In this presentation, we discuss novel strategies for improving light absorption in silicon at the nanoscale. First, we show that the principle of photon confinement on the nanometer scale enables new transitions in silicon that are otherwise momentum-forbidden, providing a mechanism for absorption enhancement by several orders of magnitude. Second, we offer new approaches for enhancing two-photon absorption in silicon and show that such strategies can be used for rapid mid-infrared imaging with Si-based cameras.
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Eric O. Potma, Dmitry Fishman, David Knez, and Jovany Merham "Linear and nonlinear optics of Si at the nanoscale", Proc. SPIE 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII, 131390D (3 October 2024); https://doi.org/10.1117/12.3027717
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KEYWORDS
Silicon
Absorption
Light absorption
Cameras
Mid infrared
Optical properties
Optoelectronics
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