A new echo phenomenon in laser induced population grating in gases - LIPG echo

Yukio Fukuda, Koichi Yamada, Tsuneo Hashi

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We report the observation of a new type of echo produced by applying two intersecting light pulses with different angles (θ and θ′) at t = 0 and τ. The laser induced population grating (LIPG) created by the first excitation and degraded due to the thermal motion of atoms is reformed by the second excitation at te= τ+mτ (αn-M), where m and n are integers and α sin ( θ 2)=sin ( θ′ 2). The experiment was performed in the ground state 3 2S 1 2 of atomic sodium vapor. This echo is not related to the atomic coherence but to the population distribution, and has novel feature for studying velocity-changing collisions.

本文言語English
ページ(範囲)299-302
ページ数4
ジャーナルOptics Communications
37
4
DOI
出版ステータスPublished - 1981 5 15

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学
  • 物理化学および理論化学
  • 電子工学および電気工学

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