2007•AIP conference proceedingsRequires access

THz Generation By Optical Rectification And Competition With Other Nonlinear Processes

Zhongan Zhao, Sophie Hameau, J. Tignon

Abstract

We present a study of the competition between THz generation by optical rectification in ZnTe crystals with two‐photon absorption and second harmonic generation. The incident pump field for optical rectification is shown to be depleted by two‐photon absorption and the generated THz field is shown to be significantly absorbed upon tight focusing by free‐carrier absorption.

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Key concepts: Optical rectification, Rectification, Absorption (acoustics), Terahertz radiation, Optoelectronics, Second-harmonic generation, Nonlinear optics, Two-photon absorption