IEEE Photonics Journal (Jan 2020)

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

  • Junyu Qian,
  • Yingying Ding,
  • Liwei Song,
  • Zhe Liu,
  • Yafeng Bai,
  • Pengfei Wang,
  • Beijie Shao,
  • Yanyan Li,
  • Yujie Peng,
  • Ye Tian,
  • Yuxin Leng,
  • Ruxin Li

DOI
https://doi.org/10.1109/JPHOT.2020.2992030
Journal volume & issue
Vol. 12, no. 3
pp. 1 – 6

Abstract

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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.

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