Abstract

We demonstrate that an anisotropic photonic crystal can modify the shape of a highly convergent incident optical beam. The beam shape engineering is relatively easy, and the photonic crystal is less alignment demanding than beam shapers that incorporate several optical systems. The shape of the output beam can be controlled by an appropriate choice of the angular divergence of the beam, the number of periods and the birefringence values and layer widths of the constituent materials.

© 2010 Optical Society of America

Engineering the bandgap of a two-dimensional anisotropic photonic crystal

G. Alagappan, X. W. Sun, P. Shum, and M. B. Yu
J. Opt. Soc. Am. B 23(7) 1478-1483 (2006)

Investigation of the effect of noncircular scatterers on the band structure of anisotropic photonic crystal slabs

T. Fathollahi Khalkhali, B. Rezaei, A. Soltani Vala, and M. Kalafi
Appl. Opt. 52(16) 3745-3752 (2013)

Effect of incident angle and polarization on electrically-tunable defect mode in anisotropic photonic crystals

Kazem Jamshidi-Ghaleh and Behnam Kazempour
Appl. Opt. 55(16) 4350-4356 (2016)

Bessel beam transformation by anisotropic crystals

Dmitriy H. Zusin, Raman Maksimenka, Valerii V. Filippov, Ruslan V. Chulkov, Michel Perdrix, Olivier Gobert, and Alexander S. Grabtchikov
J. Opt. Soc. Am. A 27(8) 1828-1833 (2010)

Symmetry properties of two-dimensional anisotropic photonic crystals

G. Alagappan, X. W. Sun, P. Shum, M. B. Yu, and D. den Engelsen
J. Opt. Soc. Am. A 23(8) 2002-2013 (2006)