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Single-shot spectra of temporally selected micropulses from a mid-infrared free-electron laser by upconversion |
Optics Letters, Vol. 37, Issue 24, pp. 5148-5150 (2012)
http://dx.doi.org/10.1364/OL.37.005148
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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.
© 2012 Optical Society of America
OCIS Codes
(040.3060) Detectors : Infrared
(120.6200) Instrumentation, measurement, and metrology : Spectrometers and spectroscopic instrumentation
(140.2600) Lasers and laser optics : Free-electron lasers (FELs)
(190.7220) Nonlinear optics : Upconversion
ToC Category:
Nonlinear Optics
History
Original Manuscript: September 20, 2012
Revised Manuscript: November 8, 2012
Manuscript Accepted: November 19, 2012
Published: December 10, 2012
Citation
Xiaolong Wang, Takashi Nakajima, Heishun Zen, Toshiteru Kii, and Hideaki Ohgaki, "Single-shot spectra of temporally selected micropulses from a mid-infrared free-electron laser by upconversion," Opt. Lett. 37, 5148-5150 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-24-5148
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