Cavity Ring-Down Spectroscopy
Cavity Ring-Down Spectroscopy
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DOI：
10.1007/978-981-33-6084-6_11
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Abhijit Maity;Mithun Pal;M. Pradhan
中科院分区：
文献类型：
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作者：
Abhijit Maity;Mithun Pal;M. Pradhan
腔衰荡光谱(CRDS)是最吸引人的分析技术之一，在各种研究领域得到了广泛的应用。这是一种直接、超灵敏和定量的激光吸收光谱技术，它测量分子物种的吸收速度，而不是光在光腔中来回移动多次的吸收程度。CRDS是一种非常强大的分析方法，可以测量各种环境中痕量和丰富的分子物种的弱吸收和强吸收。最近，该技术已在很大程度上进行了修改，因此有几种CRDS的变体可用。在本章中，我们简要讨论了CRDS技术的概述及其在高分辨率基础分子光谱和大气分子痕量检测领域的一些重要应用。文中还讨论了CRDS通过呼气试验在医学中的应用，并对该技术的发展趋势和前景进行了展望。
Cavity ring-down spectroscopy (CRDS), one of the most fascinating analytical techniques, has found widespread applications in a variety of research fields. It is a direct, ultra-sensitive and quantitative laser absorption spectroscopy technique which measures the rate of absorption of molecular species instead of the magnitude of absorption in an optical cavity where the light moves to and fro several times. CRDS is an extremely powerful analytical method which can measure weak as well as strong absorptions of trace and abundant molecular species in a variety of environments. Recently, the technique has been modified in a great extent and consequently several variants of CRDS are available. In this chapter, we briefly discuss an overview of the CRDS technique and some of its important applications in the field of high-resolution fundamental molecular spectroscopy and trace detection of molecules in the atmosphere. The application of CRDS in medical science through breath test is also discussed followed by future trends and a perspective on the technique.