On the intensity distribution function of blazed reflective diffraction gratings
Casini, R., & Nelson, P. G. (2014). On the intensity distribution function of blazed reflective diffraction gratings. Journal Of The Optical Society Of America A: Optics Image Science And Vision, 31, 2179-2184. doi:10.1364/JOSAA.31.002179
We derive from first principles the expression for the angular/wavelength distribution of the intensity diffracted by a blazed reflective grating, according to a scalar theory of diffraction. We considered the most common case of a groove profile with rectangular apex. Our derivation correctly id... Show moreWe derive from first principles the expression for the angular/wavelength distribution of the intensity diffracted by a blazed reflective grating, according to a scalar theory of diffraction. We considered the most common case of a groove profile with rectangular apex. Our derivation correctly identifies the geometric parameters of a blazed reflective grating that determine its diffraction efficiency, and fixes an incorrect but commonly adopted expression in the literature. We compare the predictions of this scalar theory with those resulting from a rigorous vector treatment of diffraction from one-dimensional blazed reflective gratings. Show less
