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Cross-correlation frequency-resolved optical gating for mid-infrared femtosecond laser pulses by an AgGaGeS4 crystal

TitleCross-correlation frequency-resolved optical gating for mid-infrared femtosecond laser pulses by an AgGaGeS4 crystal
Publication TypeJournal Article
Year of Publication2009
AuthorsTsubouchi, M, Momose, T
JournalOPTICS LETTERS
Volume34
Pagination2447-2449
Date PublishedAUG 15
ISSN0146-9592
Abstract

We introduce an AgGaGeS4 crystal for sum-frequency generation in cross-correlation frequency-resolved optical gating (XFROG) to characterize mid-IR femtosecond laser pulses between the wavelengths of 3 mu m and 11 mu m. The performance of the AgGaGeS4 crystal was examined by comparing it with a LiNbO3 crystal, which has been frequently used in the near- to mid-IR region. We can obtain XFROG images by the AgGaGeS4 crystal with efficiency 30 times greater than LiNbO3 at the wavelength of 5 mu m. (C) 2009 Optical Society of America