{"title":"Mid-infrared femtosecond pulses obtained by optical rectification of 10-fs optical pulses","authors":"A. Bonvalet, J. Martin, A. Migus, M. Joffre","doi":"10.1109/LEOS.1996.571970","DOIUrl":null,"url":null,"abstract":"We generate quasi single-cycle femtosecond pulses in the mid-infrared spectral domain by performing the optical rectification of 10-fs visible pulses. This represents a tenfold increase in the frequencies achieved through optical rectification, previously generated in the far-infrared domain only. The 10-fs pulses produced by a 100-MHz Ti:sapphire oscillator are first sent through a modified Michelson interferometer, allowing to focus a sequence of two pulses on a nonlinear material such as GaAs or GaSe. Due to the second-order nonlinear response of these materials, the incident pulses are optically rectified. This results in a transient polarization of duration 10 fs, which in turn radiates an electromagnetic wave with frequency components ranging from 0 to 50 THz.","PeriodicalId":332726,"journal":{"name":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1996-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/LEOS.1996.571970","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We generate quasi single-cycle femtosecond pulses in the mid-infrared spectral domain by performing the optical rectification of 10-fs visible pulses. This represents a tenfold increase in the frequencies achieved through optical rectification, previously generated in the far-infrared domain only. The 10-fs pulses produced by a 100-MHz Ti:sapphire oscillator are first sent through a modified Michelson interferometer, allowing to focus a sequence of two pulses on a nonlinear material such as GaAs or GaSe. Due to the second-order nonlinear response of these materials, the incident pulses are optically rectified. This results in a transient polarization of duration 10 fs, which in turn radiates an electromagnetic wave with frequency components ranging from 0 to 50 THz.