Nature Communications (Jul 2020)

Ultrashort laser pulse doubling by metal-halide perovskite multiple quantum wells

  • Jia Guo,
  • Tanghao Liu,
  • Mingjie Li,
  • Chao Liang,
  • Kaiyang Wang,
  • Guo Hong,
  • Yuxin Tang,
  • Guankui Long,
  • Siu-Fung Yu,
  • Tae-Woo Lee,
  • Wei Huang,
  • Guichuan Xing

DOI
https://doi.org/10.1038/s41467-020-17096-6
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 8

Abstract

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Laser pulse multiplication is desired in many applications but has been challenging to realize by gain medium. Here Guo et al. achieve double-pulsed stimulated emission in quasi-2D metal-halide perovskites due to the two-channel carrier funneling effect in their multiple-quantum-wells structure.