紫外超短脉冲的准分子激光放大技术

Excimer laser amplification technology of ultraviolet ultrashort pulse

由于具有波长短、聚焦特性好、峰值功率高等优势,紫外超短脉冲在超快科学、强场物理等领域具有重要的应用价值。准分子激光工作气体作为增益介质在放大紫外超短脉冲方面具有独特的优势,利用准分子激光放大紫外超短脉冲获得高强度的激光输出为紫外激光的应用提供了新的可能性。概括介绍了准分子激光放大的特点,进而基于准分子的放大特性分单元介绍了紫外超短准分子激光放大技术,并对深紫外超短脉冲脉宽的测量进行了简单阐述。

Ultraviolet ultrashort pulses have important application value in the fields of ultrafast science and strong field physics due to their short wavelength, excellent focusing characteristics, and high peak power. Excimer laser gas as gain medium has unique advantages in amplifying ultraviolet ultrashort pulses, so using excimer lasers to amplify ultraviolet ultrashort pulses to obtain high-intensity laser output provides a new possibility for the application of ultraviolet lasers. This article introduces the features of excimer laser amplification briefly firstly, then describes the ultraviolet ultrashort excimer laser technology in units based on the amplification characteristics of excimer, and at last describes the measurement of deep ultraviolet ultrashort pulse duration as well.