TITLE

Silicon-based photonic crystal heterostructure

AUTHOR(S)
Jiang, Z. M.; Shi, B.; Zhao, D. T.; Liu, J.; Wang, Xun
PUB. DATE
November 2001
SOURCE
Applied Physics Letters;11/19/2001, Vol. 79 Issue 21, p3395
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A silicon-based one-dimensional photonic crystal heterostructure is proposed, and its applications to an omnidirectional reflector and a transverse electric/transverse magnetic (TE/TM) splitter are illustrated. The photonic crystal heterostructure consists of two sets of multilayers, each has six periods of bilayers of poly-silicon and silicon dioxide. When the incident light comes from a medium with refractive index lower than 1.16, there is a frequency range over which of both TE and TM polarizations will be totally reflected at any incident angle. In such a case, the photonic crystal heterostructure can be used as a low loss omnidirectional dielectric reflector. However, when the refractive index of the medium is higher than 1.16, the heterostructure will serve as a good TE/TM splitter of very low crosstalk within certain ranges of light frequency and incident angle. © 2001 American Institute of Physics.
ACCESSION #
5549577

 

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