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Ultrashort optical-vortex pulse generation in few-cycle regime

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Title: Ultrashort optical-vortex pulse generation in few-cycle regime
Authors: Yamane, Keisaku Browse this author →KAKEN DB
Toda, Yasunori Browse this author →KAKEN DB
Morita, Ryuji Browse this author →KAKEN DB
Issue Date: 13-Aug-2012
Publisher: Optical Society of America
Journal Title: Optics Express
Volume: 20
Issue: 17
Start Page: 18986
End Page: 18993
Publisher DOI: 10.1364/OE.20.018986
PMID: 23038538
Abstract: We generated a 2.3-cycle, 5.9-fs, 56-μJ ultrashort optical-vortex pulse (ranging from ~650 to ~950 nm) in few-cycle regime, by optical parametric amplification. It was performed even by using passive elements (a pair of prisms and chirped mirrors) for chirp compensation. Spectrally-resolved interferograms and intensity profiles showed that the obtained pulses have no spatial or topological-charge dispersion during the amplification process. To the best of our knowledge, it is the first generation of optical-vortex pulses in few-cycle regime. They can be powerful tools for ultrabroadband and/or ultrafast spectroscopy and experiments of high-intensity field physics.
Rights: © 2012 Optical Society of America
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 森田 隆二

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