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|Title:||Effect of decreasing pressure on soliton self-compression in higher-order modes of a gas-filled capillary||Authors:||Wan, Ying
|Keywords:||Engineering::Electrical and electronic engineering||Issue Date:||2021||Source:||Wan, Y. & Chang, W. (2021). Effect of decreasing pressure on soliton self-compression in higher-order modes of a gas-filled capillary. Optics Express, 29(5), 7070-7083. https://dx.doi.org/10.1364/OE.418217||Project:||2020-T2-2-026||Journal:||Optics Express||Abstract:||We numerically investigate soliton self-compression in the higher-order modes of a gas-filled capillary with decreasing pressure. We demonstrate four times enhancement in the compression with the decreasing pressure compared to the equivalent constant pressure case in the HE12 mode, reaching sub-cycle duration of 1.85 fs at its output. Moreover, the negative pressure gradient effectively suppresses the intermodal coupling in the later stage of the compressor, which helps to maintain high output mode purity. These findings are of direct benefit for applications that require ultrashort light pulses in unconventional spatial beam profiles, including in nonlinear frequency conversion, microscopy, micromachining, and particle manipulation.||URI:||https://hdl.handle.net/10356/157787||ISSN:||1094-4087||DOI:||10.1364/OE.418217||Rights:||© 2021 Optical Society of America under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for noncommercial purposes and appropriate attribution is maintained. All other rights are reserved.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EEE Journal Articles|
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Updated on May 25, 2022
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