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3 October 2022 Optical rectification in inherently linear metasurfaces with broken inversion symmetry and active biophotonics
Richard M. Osgood III, Jin Ho Kim, Peter Moroshkin, Joseph Plumitallo, Jimmy Xu, T. Ochiai, Guinevere Strack, Christopher Roberts, Mordechai Rothschild, Lalitha Parameswaran
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Proceedings Volume PC12196, Active Photonic Platforms 2022; PC121961D (2022) https://doi.org/10.1117/12.2633173
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
Active, dynamic, and reconfigurable control of photons and absorption is an important goal for many technologies. The ability to respond to, and be designed for, a wide range of wavelengths is critical and difficult for semiconductors. We discuss our recent discovery of optical ratchet rectification in an asymmetric plasmonic grating with no intrinsic chi(2) or nonlinearity, where direct (zero frequency) electrical current flows from incident photons ~4x larger than previous results. We report optoelectronic results on a metal-insulator-metal rectifier, reconfigured by rotating ferromagnetic moments in the top metal (Co), on Au/NbOx on Nb, Al. A magnetically-reconfigurable rectifier could be switched on and off with little energy, while retaining broadband response. Xanthommatin (Xa) is a small-molecule bio-pigment that can serve as a reconfigurable less-toxic photonic material.; we discuss actively controlling it using electromagnetic fields etc., presenting a model of the combined chromatophores and iridophores, a dynamically tunable photonic device in Nature.
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Richard M. Osgood III, Jin Ho Kim, Peter Moroshkin, Joseph Plumitallo, Jimmy Xu, T. Ochiai, Guinevere Strack, Christopher Roberts, Mordechai Rothschild, and Lalitha Parameswaran "Optical rectification in inherently linear metasurfaces with broken inversion symmetry and active biophotonics", Proc. SPIE PC12196, Active Photonic Platforms 2022, PC121961D (3 October 2022); https://doi.org/10.1117/12.2633173
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KEYWORDS
Biomedical optics
Frequency conversion
Photons
Electromagnetism
Metals
Semiconductors
Sensors
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