Resonant effects in diffraction from two-dimensional dielectric gratings is demonstrated experimentally. A two-layer structure, which consists of a uniform guiding layer and a grating layer, yielded symmetric, low-sideband resonance that is suitable for narrow-band filter applications. Excellent agreement between measured and calculated spectral and angular dependence is obtained.
© 1996 Optical Society of America
Original Manuscript: October 23, 1995
Published: April 15, 1996
Song Peng and G. Michael Morris, "Experimental demonstration of resonant anomalies in diffraction from two-dimensional gratings," Opt. Lett. 21, 549-551 (1996)