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Tailoring of optical modes of semiconductor microcavities via metal and dielectric gratings |
Optics Letters, Vol. 37, Issue 24, pp. 5085-5087 (2012)
http://dx.doi.org/10.1364/OL.37.005085
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Abstract
We investigate optical mode tailoring in a semiconductor microcavity with a metal grating on top and a dielectric grating (DG) on the bottom. Strong coupling between microcavity and grating-diffraction modes is explained in the Fano-picture. The Fano resonance shows a weak dependence upon grating height and duty ratio, but is strong upon grating period. The microcavity transmission line shapes are “S” and anti “S”-type for the metal and DGs, respectively. Together with these two types of Fano resonances, the transmission spectra have been tailored into very sharp peaks with FWHM being up to 0.1 nm. We prove that this optical mode tailoring method is quite applicable for other waveguide-grating structures too.
© 2012 Optical Society of America
OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(050.0050) Diffraction and gratings : Diffraction and gratings
(230.7408) Optical devices : Wavelength filtering devices
ToC Category:
Diffraction and Gratings
History
Original Manuscript: September 21, 2012
Manuscript Accepted: October 22, 2012
Published: December 6, 2012
Citation
Guangda Dong, Yongyou Zhang, Muhammad Arshad Kamran, and Bingsuo Zou, "Tailoring of optical modes of semiconductor microcavities via metal and dielectric gratings," Opt. Lett. 37, 5085-5087 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-24-5085
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