Nonspecular reflection of ordinary and extraordinary beams in uniaxial media

BONOMO, NÉSTOR; DEPINE, RICARDO

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION

Optical Society of America

Año: 1997 vol. 14 p. 3402 - 3409

0740-3232

We study nonspecular phenomena experienced by two-dimensional ordinary and extraordinary beams propagating in a uniaxial crystal and reflected at a flat uniaxial–isotropic interface. We extend to uniaxial crystals the aberrationless approach used for beams in isotropic media. Analytical expressions for the geometrical nonspecular effects (lateral shift, focal shift, angular shift, and beam waist modification) are given and compared with those predicted by the stationary phase approximation. The theory is applied to the reflection of beams at a flat interface between TiO2 and a vacuum.–isotropic interface. We extend to uniaxial crystals the aberrationless approach used for beams in isotropic media. Analytical expressions for the geometrical nonspecular effects (lateral shift, focal shift, angular shift, and beam waist modification) are given and compared with those predicted by the stationary phase approximation. The theory is applied to the reflection of beams at a flat interface between TiO2 and a vacuum.