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Title: Single-shot spectra of temporally selected micropulses from a mid-infrared free-electron laser by upconversion
Authors: Wang, Xiaolong
Nakajima, Takashi
Zen, Heishun  kyouindb  KAKEN_id  orcid (unconfirmed)
Kii, Toshiteru  kyouindb  KAKEN_id
Ohgaki, Hideaki  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 中嶋, 隆
Issue Date: 15-Dec-2012
Publisher: Optical Society of America
Journal title: Optics Letters
Volume: 37
Issue: 24
Start page: 5148
End page: 5150
Abstract: We demonstrate the measurement of single-shot spectra of temporally selected micropulses from a mid-infrared free-electron laser (FEL) by upconversion. We achieve the upconversion of FEL pulses at 11 μm using externally synchronized Nd:YAG or microchip laser pulses at 1064 nm to produce sum-frequency mixing signals at 970 nm, which are detected by a compact CCD spectrometer without an intensifier. Our experimental system is very cost-effective, and allows us to obtain the laser spectra of selected micropulses at any temporal position within a single macropulse from an oscillator-type FEL.
Rights: © 2012 Optical Society of America.
This paper was published in "Optics Letters" and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
DOI(Published Version): 10.1364/OL.37.005148
Appears in Collections:Journal Articles

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