Intense few-cycle infrared laser pulses at the advanced laser light source

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DOIResolve DOI: http://doi.org/10.6122/CJP.52.537
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TypeArticle
Journal titleChinese Journal of Physics
Volume52
Issue1-II
Pages537545; # of pages: 9
AbstractTo push the generation of isolated attosecond pulses towards shorter XUV wavelengths (0.3 to 1 keV), intense few-cycle driving pulses are required whose center frequency is significantly red shifted compared to established Ti-Sa technology. A simple route for generating these pulses is demonstrated using an optical parametric amplifier (OPA). Its infrared (IR) multi-cycle laser pulses with millijoule of energy are spectrally broadened by nonlinear propagation in a hollow-core fiber (HCF) filled with Argon. For the OPA Signal wavelength (λ = 1.4 micron), chirped mirrors were used for dispersion compensation with a resulting pulse duration of 13.1 fs. For the OPA Idler wavelength at 1.8 micron, a new compression scheme has been developed with which 11.2 fs laser pulses have been characterized (1 cycle= 6 fs). Here, pulse compression is achieved through the combined effects of self-steepening during nonlinear propagation in the HCF followed by anomalous dispersion during linear propagation in fused silica.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NPARC number21276362
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Record identifierbf845e24-72c1-4bec-ba8d-b5e4f3b17804
Record created2015-10-05
Record modified2016-05-09
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