Photonic crystal light deflection devices using the superprism effect
By Toshihiko Baba, M. Nakamura. 2002
148 citations recorded by the source corpus.
The superprism effect allows wide-angle deflection of the light beam in a photonic crystal (PC) by a slight change of the wavelength or the incident angle. In this paper, we discuss such light deflection outside the PC, which is expected when the output end of the PC is tilted against the input end. The analysis of the dispersion surfaces indicates a deflection angle of /spl plusmn/50/spl deg/ in a two-dimensional PC composed of triangular lattice airholes by changing the incident angle by /spl plusmn/2/spl deg/ or the wavelength by /spl plusmn/2%. Light deflections inside and outside the PC are numerically demonstrated by the finite difference time-domain method. It displays not only the main output beam but also many diffracted waves, which satisfy the wavevector conservation condition. These waves are sufficiently suppressed and an almost collimated output beam is realized by a flat interface.
Subfields: Atomic and Molecular Physics, and Optics, Ecology, Evolution, Behavior and Systematics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/3e8ba8edb8722a507123baa238c780753ff2f6c3
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In Atomic and Molecular Physics, and Optics
In Electrical and Electronic Engineering
Citations in the corpus
- Self-collimation in planar photonic crystals (2002, background): “Recently, there has been an effort to implement those phenomena in PPCs [14]–[17].”