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Excellent polarization-independent reflector based on guided mode resonance effect
- Source :
- Chinese Physics B. 20:104210
- Publication Year :
- 2011
- Publisher :
- IOP Publishing, 2011.
-
Abstract
- A broad band polarization-independent reflector working in the telecommunication C+L band is proposed using the guided mode resonance effect of a periodic surface relief element deposited by a layer of silicon medium. It is shown that this structure can provide high reflection (R > 99.5%) and wide angular bandwidth (θ ≈ 20°, R > 98%) for both TE and TM polarizations over a wide spectrum band 1.5 μm~1.6 μm. Furthermore, it is found by rigorous coupled wave analysis that the polarization-independent reflector proposed here is tolerant of a deviation of grating thickness, which makes it very easy to fabricate in experiments.
Details
- ISSN :
- 16741056
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- Chinese Physics B
- Accession number :
- edsair.doi...........14721f77c197b4884063f1028a9a47d5