Nonreciprocal diffraction by spatial modulation of absorption and refraction.
Linear diffraction gratings that provide strongly asymmetric diffraction without surface modulation are created and studied. The spatial phase shift of the refractive-index grating relative to the absorption grating is the origin of nonreciprocal behavior.
Birabassov
R
R
Yesayan
A
A
Galstyan
T V
TV