Near-Infrared Supercontinuum and Ultrashort Pulses Generated Based on Phase-Mismatched Cascaded Frequency Conversion in DSTMS Crystal

A near-infrared (NIR) supercontinuum and ultrashort pulses are generated via phase-mismatched cascaded frequency conversion in DSTMS (4-N, N-dimethylamino-4’-N’-methyl-stilbazolium 2, 4, 6-trimethylbenzenesulfonate) crystal. NIR pulses with a central wavelength of 1.5 &#x03...

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Bibliographic Details
Main Authors: Junyu Qian, Yingying Ding, Liwei Song, Zhe Liu, Yafeng Bai, Pengfei Wang, Beijie Shao, Yanyan Li, Yujie Peng, Ye Tian, Yuxin Leng, Ruxin Li
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Photonics Journal
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Online Access:https://ieeexplore.ieee.org/document/9085938/
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Summary:A near-infrared (NIR) supercontinuum and ultrashort pulses are generated via phase-mismatched cascaded frequency conversion in DSTMS (4-N, N-dimethylamino-4’-N’-methyl-stilbazolium 2, 4, 6-trimethylbenzenesulfonate) crystal. NIR pulses with a central wavelength of 1.5 μm and 63 fs pulse duration are incident into the crystal, and the spectrum is broadened to over 1200–2100 nm. Compensating the dispersion by fused silica, ultrashort NIR pulses with 16.6 fs pulse duration are obtained. Meanwhile, intense single-cycle terahertz pulses are generated via optical rectification in DSTMS crystal.
ISSN:1943-0655