期刊
IEEE PHOTONICS JOURNAL
卷 12, 期 3, 页码 -出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2020.2992030
关键词
Ultrafast technology; pulse compression; nonlinearity; terahertz
资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB1603]
- National Natural Science Foundation of China [11127901, 61925507, 11874372, 11922412]
- International S&T Cooperation Program of China [2016YFE0119300]
- Youth Innovation Promotion Association CAS
- 100 Talents Program of CAS
- Program of Shanghai Academic/Technology Research Leader [18XD1404200]
- Shanghai Municipal Science and Technology Major Project [2017SHZDZX02]
- Shanghai Rising-Star Program [2019-jmrh1kj1]
- Shanghai Pujiang Talents Program [19PJ1410500]
A near-infrared (NIR) supercontinuum and ultrashort pulses are generated via phase-mismatched cascaded frequency conversion in DSTMS (4-N, N-dimethylamino-4& x2019;-N& x2019;-methyl-stilbazolium 2, 4, 6-trimethylbenzenesulfonate) crystal. NIR pulses with a central wavelength of 1.5 & x03BC;m and 63 fs pulse duration are incident into the crystal, and the spectrum is broadened to over 1200& x2013;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.
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