Generation and complete characterization of intense mid-infrared ultrashort pulses

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DOIResolve DOI: http://doi.org/10.1364/JOSAB.23.000332
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TypeArticle
Journal titleJournal of the Optical Society of America B
Volume23
Issue2
Pages332340; # of pages: 9
SubjectHarmonic generation and mixing; Spectroscopy, heterodyne; Spectroscopy, infrared; Ultrafast measurements; Ultrafast nonlinear optics; Ultrafast technology
AbstractIntense mid-infrared pulses tunable between 5 and 14 µm with pulse energies of several microjoules were generated by difference-frequency mixing (DFM) in a GaSe crystal. Longer wavelengths (up to 18 µm) were achieved by DFM in a CdSe crystal. The infrared pulses were then characterized using various techniques: The spectrum was measured using a Fourier-transform spectrometer, which was then modified to determine the interferometric second-order autocorrelation. The electric field spectral phase was measured using the same setup, thus leading to a full characterization of the mid-infrared pulses. The spectral phase was measured using the time-domain homodyne optical technique for spectral phase interferometry for direct electric field reconstruction, where spectral interferometry was replaced with time-domain interferometry. The measured pulse duration was 100 fs, nearly transform limited.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences
Peer reviewedYes
NPARC number12327651
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Record identifier9b21e658-9e1e-4c50-a90b-d8f3b5c79d53
Record created2009-09-10
Record modified2016-05-09
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