Spectral line-shape study by cavity-enhanced complex refractive index spectroscopy

23rd International Conference on Spectral Line Shapes

Lisak, D.^1 ; Cygan, A.^1 ; Wójtewicz, S.^1 ; Wcislo, P.^1 ; Zaborowski, M.^1 ; Kowzan, G.^1 ; Maslowski, P.^1 ; Ciurylo, R.^1

Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Toru, Grudziadzka 5, Toru

87-100, Poland^1

关键词: Cavity ring down spectroscopies;    Complex refractive index;    High precision detections;    Instrumental error;    One-dimensional cavities;    Presented examples;    Spectral line shape;    Various spectroscopic methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/810/1/012007/pdf
DOI  :  10.1088/1742-6596/810/1/012007

来源: IOP

【 摘 要 】

We present a unique experimental setup that enables measurement of high-resolution complex refractive index spectra of gas sample using several cavity-enhanced methods: frequency-stabilized cavity ring-down spectroscopy, cavity mode-width spectroscopy and one-dimensional cavity mode-dispersion spectroscopy. Presented examples of applications cover molecular spectral line-shape investigations, line intensities and unperturbed line center frequency measurements and high-precision detection of systematic instrumental errors of various spectroscopic methods.