Chemical absorption is investigated using the evanescent fraction of a whispering gallery mode (WGM). An effective absorption path length of about 50 cm is obtained in methane sensing and about 100 cm in a liquid dye solution.
Evanescent-wave chemical sensing using WGM microresonators
2004-01-01
145372 byte
Conference paper
Electronic Resource
English
MC4.4 Evanescent-Wave Chemical Sensing using WGM Microresonators
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