Fast-passage microwave molecular spectroscopy with frequency sweeping

Autor:	Vladimir L. Vaks, V. V. Khodos, Dmitry A. Ryndyk
Rok vydání:	2004
Předmět:	Spectrometer Absorption spectroscopy Chemistry business.industry Detector Condensed Matter Physics Spectral line Sweep frequency response analysis Electronic Optical and Magnetic Materials symbols.namesake Fourier transform Optics symbols Rotational spectroscopy business Instrumentation Microwave
Zdroj:	The European Physical Journal Applied Physics. 25:203-208
ISSN:	1286-0050 1286-0042
DOI:	10.1051/epjap:2004008
Popis:	We propose a new method of molecular microwave spectroscopy together with analysis of resonance line shapes, based on the fast passage effect. The fast passage effect is the excitation of coherent spontaneous radiation of tested molecules using a fast frequency sweep over the absorption line. We show that the line shape can be reconstructed from the received detector signal with the use of Hilbert and Fourier transformations. We find that sensitivity of a fast passage spectrometer is higher than that of an ordinary pulsed Fourier-transform spectrometer. The proposed method is a useful tool for fast analysis of gas mixtures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2e1a4e421a97980e616e14b54e66d51e https://doi.org/10.1051/epjap:2004008 Zobrazit plný text záznamu