Light-controlled microwave whispering-gallery-mode quasi-optical resonators at 50W LED array illumination
Author
Yurchenko V.B.
Ciydem, M.
Altintas, A.
Date
2015Source Title
AIP Advances
Print ISSN
21583226
Publisher
American Institute of Physics Inc.
Volume
5
Issue
8
Language
English
Type
ArticleItem Usage Stats
137
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Abstract
We present experimental observations of light-controlled resonance effects in microwave whispering-gallery-mode quasi-optical dielectric-semiconductor disk resonators in the frequency band of 5 GHz to 20 GHz arising due to illumination from a light emitting diode (LED) of 50W power range. We obtain huge enhancement of photo-sensitivity (growing with the resonator Q-factor) that makes light-microwave interaction observable with an ordinary light (no laser) at conventional brightness (like an office lighting) in quasi-optical microwave structures at rather long (centimeter-scale) wavelength. We also demonstrate non-conventional photo-response of Fano resonances when the light suppresses one group of resonances and enhances another group. The effects could be used for the optical control and quasi-optical switching of microwave propagation through either one or another frequency channel. © 2015 Author(s).
Keywords
Frequency bandsMicrowave resonators
Microwaves
Optical resonators
Q factor measurement
Resonance
Resonators
Whispering gallery modes
Centimeter-scale
Frequency channels
Microwave interactions
Microwave propagation
Optical control
Quasi-optical resonator
Resonance effect
Resonator Q-factor
Light emitting diodes
Permalink
http://hdl.handle.net/11693/21403Published Version (Please cite this version)
http://dx.doi.org/10.1063/1.4928868Collections
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