We report a two-dimensional silicon photonic crystal structure that supports the self-collimation effect with large incident angles over a broad wavelength range. We theoretically and experimentally show the propagation light in the designed and fabricated structure without diffraction. Broadband large-angle self-collimation is observed in infrared wavelength.
© 2012 Optical Society of America
Instrumentation, Measurement, and Metrology
Original Manuscript: March 14, 2012
Manuscript Accepted: April 6, 2012
Published: June 14, 2012
Lin Gan, Fei Qin, and Zhi-Yuan Li, "Broadband large-angle self-collimation in two-dimensional silicon photonic crystal," Opt. Lett. 37, 2412-2414 (2012)