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Widely tunable optical filter with variable bandwidth based on the thermal effect on cholesteric liquid crystals |
Applied Optics, Vol. 51, Issue 24, pp. 5780-5784 (2012)
http://dx.doi.org/10.1364/AO.51.005780
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Abstract
A widely tunable optical filter with variable bandwidth has been demonstrated based on the thermal effect on cholesteric liquid crystals. The central wavelength can be widely tuned from 826 to 517 nm and the bandwidth can be varied from 10 to 70 nm. It will have potential applications in many fields, especially in telecommunications and multi-spectral/hyper-spectral imaging systems.
© 2012 Optical Society of America
OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(230.3720) Optical devices : Liquid-crystal devices
(230.7408) Optical devices : Wavelength filtering devices
ToC Category:
Optical Devices
History
Original Manuscript: April 25, 2012
Revised Manuscript: July 6, 2012
Manuscript Accepted: July 8, 2012
Published: August 13, 2012
Citation
Yuhua Huang and Shichao Zhang, "Widely tunable optical filter with variable bandwidth based on the thermal effect on cholesteric liquid crystals," Appl. Opt. 51, 5780-5784 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-24-5780
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