一个多功能和狭窄的线宽红外辐射源用于ro-振动状态选择的分子在分子束中制备分子
Avinash Kumar1, Saurabh Kumar Singh1, Pranav R Shirhatti1
1Tata Institute of Fundamental Research Hyderabad, 36/P Gopanpally, Hyderabad 500046, Telangana, India.
The Review of scientific instruments
|November 10, 2023
概括
我们开发了一种多功能脉冲激光系统,用于产生窄线宽辐射. 该系统能够在分子光谱学中进行精确的控制和应用,特别是用于一氧化碳 (CO) 状态制备.
科学领域:
- 光学物理学的光学物理学
- 分子光谱学 分子光谱学
- 激光技术 激光技术 激光技术
背景情况:
- 精确控制激光参数对于先进的光谱应用至关重要.
- 脉冲光学参数振荡器和放大器 (OPO/OPA) 提供可调节的波长生成.
- 狭窄的线宽和积极的稳定是状态选择性分子操纵的关键要求.
研究的目的:
- 设计和描述一个多功能脉冲光学参数振荡器和放大器 (OPO/OPA) 系统.
- 为了实现单一的纵向模式,窄线宽辐射生成.
- 展示该系统在国家选择的分子制剂中的应用.
主要方法:
- 设计和建造一个脉冲OPO/OPA系统,具有特定的脉冲持续时间和重复率.
- 使用功率正常化的光声信号和基于Fizeau干扰仪的波量计进行主动稳定.
- 采用直接超音调激发的ro-振动状态选择制备一氧化碳 (CO).
主要成果:
- OPO/OPA系统在680-870nm和1380-4650nm范围内产生辐射.
- 实现了单个纵向模式,窄线宽 (0.01 cm-1) 输出.
- 在1000秒以上的时间内,积极稳定输出波数到0.005cm-1 (3σ) 之内.
- 成功地证明了在v=2状态下对CO的ro-振动状态选择的制备.
结论:
- 开发的脉冲OPO/OPA系统具有多功能性,并提供高精度的激光输出.
- 主动稳定方法确保了波数的长期稳定性.
- 该系统适用于先进的应用,如国家选择的分子光谱学.
相关概念视频
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