用于正电子激光冷却的变石激光系统

IF 4.6 2区物理与天体物理 Q1 OPTICS Optics and Laser Technology Pub Date : 2024-11-27 DOI:10.1016/j.optlastec.2024.112097

N. Gusakova , A. Camper , R. Caravita , L. Penasa , L.T. Glöggler , T. Wolz , V. Krumins , F.P. Gustafsson , S. Huck , M. Volponi , B. Rienäcker , G. Khatri , J. Malamant , S. Mariazzi , R.S. Brusa , L. Cabaret , D. Comparat , M. Doser

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引用次数: 0

摘要

我们报告了一种基于∼100 ns 长脉冲持续时间紫外线激光系统的 Q 开关紫晶激光器。基脉冲的中心波长由反射体积布拉格光栅设定，可在 728 nm 和 742 nm 之间调整。光谱带宽为 ∼130 GHz。设计该激光系统的目的是通过使 13S-23P 转变达到强饱和，对接近室温的正电子云进行多普勒冷却。此外，我们还报告了 KD*P 波克尔斯单元驱动器的开发情况，该驱动器既能对腔体进行 Q 开关，又能诱发激光脉冲的急剧下降边沿，从而以纳秒级的精度控制正电子与激光相互作用的结束时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An alexandrite laser system for positronium laser cooling

We report on a Q-switched alexandrite based

\sim

100 ns long pulse duration ultra-violet laser system. The central wavelength of the fundamental pulse is set by a Volume Bragg Grating in reflection and can be tuned between 728 nm and 742 nm. The spectral bandwidth is

\sim

130 GHz. This laser system was designed in view of Doppler cooling of a cloud of a near room temperature positronium by strongly saturating the

1^{3} S

–

2^{3} P

transition. In addition, we report on the development of a KD*P Pockels cell driver designed to both Q-switch the cavity and induce a sharp falling edge of the laser pulse so that the end of the positronium-laser interaction time can be controlled with nanosecond precision.

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来源期刊

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems