用于激光冷却反氢的莱曼-α源。

Lyman-α source for laser cooling antihydrogen.

出版信息

Opt Lett. 2018 Jun 15;43(12):2905-2908. doi: 10.1364/OL.43.002905.

DOI:10.1364/OL.43.002905

Abstract

We present a Lyman-α laser developed for cooling trapped antihydrogen. The system is based on a pulsed Ti:sapphire laser operating at 729 nm that is frequency doubled using an LBO crystal and then frequency tripled in a Kr/Ar gas cell. After frequency conversion, this system produces up to 5.7 μW of average power at the Lyman-α wavelength. This laser is part of the ATRAP experiment at the antiproton decelerator in CERN.

摘要

我们展示了一种为冷却被俘的反氢而开发的莱曼-α激光。该系统基于工作在 729nm 的脉冲钛宝石激光器，通过 LBO 晶体进行二倍频，然后在 Kr/Ar 气体池中进行三倍频。经过频率转换，该系统在莱曼-α波长下可产生高达 5.7μW 的平均功率。该激光是 CERN 的反质子减速器中的 ATRAP 实验的一部分。