Short terahertz pulses from semiconductor surfaces: The importance of bulk difference‐frequency mixing

Autor:	Peter N. Saeta, Benjamin I. Greene, Shun Lien Chuang
Rok vydání:	1993
Předmět:	Crystal Optical rectification Semiconductor Physics and Astronomy (miscellaneous) Rectification business.industry Chemistry Modulation Terahertz radiation Optoelectronics Specular reflection Emission spectrum business
Zdroj:	Applied Physics Letters. 63:3482-3484
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.110127
Popis:	The crystallographic orientation dependence of the far‐infrared (FIR) light generated at the (001) surface of a zincblende semiconductor is shown to derive principally from bulk difference‐frequency mixing. A strong modulation is observed for 1‐GW/cm2 pulses on InP, which demonstrates that the radiated FIR wave produced by bulk optical rectification is comparable to that generated by the transport of photoinjected carriers. Using the bulk rectification light as a clock, we show that more than 95% of the light produced from an InP (111) crystal by 100‐fs, 100‐μJ pulses is generated in a time shorter than the excitation pulse.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e9199fb5d07ede6f2271836db1e3ba3d https://doi.org/10.1063/1.110127 Zobrazit plný text záznamu