Searching for Evidence of Optical Rectification: Optically-Induced Nonlinear Photovoltage in a Capacitor Configuration
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Authors
Mirzaee, Somayeh
Nunzi, Jean-Michel
Date
2018-12-12
Type
journal article
Language
en
Keyword
Nonlinear optical devices; Nonlinear optical materials; Nonlinear optics at surfaces; Photothermal effects
Alternative Title
Abstract
A current challenge in photonics is to design new versatile photodetectors based on optical rectification induced photo-voltage; these ones are more attractive than classical photodetectors because they do not rely on band to band transitions. Identification of the origin of the photovoltage detected under intense illumination can sometimes be confusing due to the competition between several nonlinear processes. Examples of such processes are optical rectification, multiphoton absorption, and photothermal heating, all of which may result in the detection of a DC photovoltage in a capacitor
configuration. Herein, differences between the resulting photovoltage from these processes are analyzed, and techniques are proposed to distinguish between optical rectification-induced DC photovoltage and the photovoltage resulting from alternative effects.
Description
Citation
J. Opt. Soc. Am. B 36, 53-60 (2019)
Publisher
Optical Society of America