Hot carriers: Extra energy for extra bandwidth in photonics and electronics

Mohammad Taghinejad; Mark L. Brongersma; Wenshan Cai

doi:10.1117/12.2616285

5 March 2022 Hot carriers: Extra energy for extra bandwidth in photonics and electronics

Mohammad Taghinejad, Mark L. Brongersma, Wenshan Cai

Proceedings Volume PC12010, Photonic and Phononic Properties of Engineered Nanostructures XII; PC120100R (2022) https://doi.org/10.1117/12.2616285
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

Hot carriers –electrons and holes with energies notably larger than k¬BTroom¬– play a key role in many photon-driven processes ranging from solar energy harvesting to photochemistry. In essence, hot carriers are the natural products of light absorption in plasmonic platforms and often are regarded as an inherent source of loss in subwavelength metallic resonators. In this talk, we present a series of ideas revealing grand optical and opto-electrical opportunities based on the generation and transport of hot carriers. To name a few, we discuss the essential role of hot carries for implementing sub-picosecond optical switches, inducing second-order nonlinear optical effects in centrosymmetric media, and demonstrating the generation of terahertz electronic signals in hybrid nanophotonic platforms.

Conference Presentation

Citation Download Citation

Mohammad Taghinejad, Mark L. Brongersma, and Wenshan Cai "Hot carriers: Extra energy for extra bandwidth in photonics and electronics", Proc. SPIE PC12010, Photonic and Phononic Properties of Engineered Nanostructures XII, PC120100R (5 March 2022); https://doi.org/10.1117/12.2616285

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