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

Read online

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.

Keywords