Step-modulated decay cavity ring-down detection for double resonance spectroscopy

Show full item record



Permalink

http://hdl.handle.net/10138/262550

Citation

Karhu , J , Lehmann , K , Vainio , M , Metsälä , M & Halonen , L 2018 , ' Step-modulated decay cavity ring-down detection for double resonance spectroscopy ' , Optics Express , vol. 26 , no. 22 , pp. 29086-29098 . https://doi.org/10.1364/OE.26.029086

Title: Step-modulated decay cavity ring-down detection for double resonance spectroscopy
Author: Karhu, Juho; Lehmann, Kevin; Vainio, Markku; Metsälä, Markus; Halonen, Lauri
Contributor: University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
University of Helsinki, Department of Chemistry
Date: 2018-10-29
Language: eng
Number of pages: 13
Belongs to series: Optics Express
ISSN: 1094-4087
URI: http://hdl.handle.net/10138/262550
Abstract: A method of measuring double resonant two-photon signal and background from a single cavity ring-down decay is introduced. This is achieved by modulating the double resonance loss via one of the light sources exciting the transition. The noise performance of the method is characterized theoretically and experimentally. The addition of a new parameter to the fitting function introduces a minor noise increase due to parameter correlation. However, the concurrent recording of the background can extend the stable measurement time. Alternatively, the method allows a faster measurement speed, while still recording the background, which is often advantageous in double resonance measurements. Finally, the method is insensitive to changes in the cavity decay rate at short timescales and can lead to improved performance if they have significant contribution to the final noise level compared to the detector noise. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Subject: 2-PHOTON ABSORPTION
MU-M
STATE
114 Physical sciences
116 Chemical sciences
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
oe_26_22_29086.pdf 2.431Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record