Deep- To near-ultraviolet Raman frequency conversion pumped by femtosecond pulses in a hollow-core waveguide

Taku Shakano, Shin Ichi Zaitsu, Totaro Imasaka

研究成果: Contribution to journalArticle査読

抄録

Broadband vibrational/rotational Raman generation ranging from deep ultraviolet (DUV) to blue wavelengths is demonstrated by using molecular hydrogen in a hollow-core waveguide as a Raman-active medium pumped by a femtosecond DUV laser. We find the high-order transient stimulated Raman scattering is drastically enhanced for input beams including a circularly polarized component; a circularly polarized input beam achieves the highest conversion efficiency. Coherent vibrational anti-Stokes Raman emission is observed only for a circularly polarized pump beam, indicating that the waveguide effect also contributes to the upconversion of a DUV pulse via transient stimulated Raman scattering.

本文言語英語
ページ(範囲)6962-6970
ページ数9
ジャーナルApplied Optics
60
23
DOI
出版ステータス出版済み - 8 10 2021

All Science Journal Classification (ASJC) codes

  • 原子分子物理学および光学
  • 工学(その他)
  • 電子工学および電気工学

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