MEMS-actuated wavelength drop filter based on microsphere whispering gallery modes
نویسندگان
چکیده
منابع مشابه
Ultrasensitive chemical sensors based on whispering gallery modes in a microsphere coated with zeolite.
We propose a highly sensitive chemical sensor by functionally coating a zeolite film on the external surface of an optical microsphere. Using the perturbation theory, a model is developed to calculate sensor sensitivity and analyze the impact of the zeolite film thickness. The quality factor and detection limit are also investigated by using an approximate model. Simulations show that a zeolite...
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Whispering gallery modes are specific resonances (or modes) of a wave field that are confined inside a given resonator (cavity) with smooth edges due to continuous total internal reflection. The most interesting from a practical viewpoint are electromagnetic whispering gallery modes, since they posses many unique properties, such as ultra-high Q-factors, low mode volumes, small sizes of resonat...
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ژورنال
عنوان ژورنال: Journal of Micromechanics and Microengineering
سال: 2011
ISSN: 0960-1317,1361-6439
DOI: 10.1088/0960-1317/21/11/115020