Nanosecond laser spectrometer for the ultraviolet spectral regime

这项提议要求购买一台激光光谱仪，该光谱仪包括一个高功率纳秒激光系统作为主要设备，以及其他设备，用于在紫外线光谱范围内对致密原子和分子气体进行光谱分析。该装置旨在作为我的波恩工作组基本设备的一个普遍可用的部分，并应允许将迄今在可见光光谱范围内开展的几项研究扩展到真空紫外光光谱系统。拟议的激光光谱仪最初将用于实验，目的是在真空-紫外线光谱范围内产生光子的玻色-爱因斯坦凝聚体，从而在光谱范围内实现一种新的相干光源，在该光谱范围内，由于所需的活动介质的反转，传统的激光光源几乎不可用，甚至根本不可用。该激光光谱仪还将为稠密分子气体的“宏观”样品的碰撞诱导激光冷却实验提供基础。可以预见，远至紫外区的大调谐范围和所提议的光源的高功率以及光谱仪良好的光谱分辨率将是这些研究项目以及未来研究项目成功的关键。

This proposal asks for the purchase of a laser spectrometer consisting of a high-power nanosecond laser system as the main device, along with additional equipment, for the spectroscopy of dense atomic and molecular gases in the ultraviolet spectral regime. The device is intended as a universally usable part of the basic equipment of my Bonn working group, and should allow to extend several lines of research carried out so far in the visible spectral range into the vacuum ultraviolet spectral regime. The proposed laser spectrometer will initially be used in experiments aimed at generating a Bose-Einstein condensate of photons in the vacuum-ultraviolet spectral regime, thus enabling a novel source of coherent light in a spectral range in which conventional laser sources, due to the required inversion of the active medium, are barely or even not available at all. The laser spectrometer will also provide the basis for experiments on collision-induced laser cooling of "macroscopic" samples of dense molecular gases. It is to be expected that the large tuning range far into the ultraviolet spectral regime and the high power of the proposed optical source combined with the good spectral resolution of the spectrometer will be crucial to the success of these as well as future research projects.