Results 291 to 300 of about 6,802,009 (374)

Diffraction efficiency evaluation for diamond turning of harmonic diffractive optical elements

Applied Optics, 2020
Single point diamond turning is a commonly used method for manufacturing harmonic diffractive optical elements (HDOEs). Diffraction efficiency of HDOEs is sensitive to surface-relief profile errors, and a half-round tool can reduce the profile error obviously. Furthermore, the diamond tools also create surface roughness errors.
Peng, Zhou, Changxi, Xue, Chao, Yang, Chang, Liu, Xingguo, Liu   +4 more
openaire   +3 more sources

Upper bound of the diffraction efficiency of diffractive phase elements

Optics Letters, 1991
An upper bound of the diffraction efficiency of diffractive elements that only influence the phase of the illumination wave is derived. The derivation only utilizes the specification of the desired diffraction pattern. It is independent of the technique to design and fabricate the diffractive element.
exaly   +3 more sources

Effects of manufacturing errors on diffraction efficiency for multilayer diffractive optical elements

Applied Optics, 2011
The effect of manufacturing errors on diffraction efficiency for multilayer diffractive optical elements (MLDOEs) used in imaging optical systems is discussed in this paper. The relationship of diffraction efficiency and depth-scaling errors are analyzed for two different cases: the two relative depth-scaling errors change in the same sign and in the ...
Liangliang, Yang, Qingfeng, Cui, Tao, Liu, Changxi, Xue   +3 more
exaly   +3 more sources

Diffraction efficiency change of multilayer diffractive optics with environmental temperature

Journal of Optics, 2014
In this paper, the effect of an environmental temperature change on multilayer diffractive optical elements (MLDOEs) is studied in terms of the diffraction efficiency and the polychromatic integral diffraction efficiency (PIDE). The relation between the diffraction efficiency of MLDOEs and environmental temperature is analyzed theoretically, and ...
Mingxu Piao, Qingfeng Cui, Hao Zhu, Changxi Xue, Bo Zhang   +4 more
openaire   +2 more sources

Polarization-independent high diffraction efficiency two-dimensional grating based on cylindrical hole nano arrays

Optics Express, 2020
In this paper, we propose a reflective two-dimensional (2D) metal-dielectric grating based on cylindrical hole nano arrays with excellent polarization-independent high diffraction efficiency.
Peng Sun, Jin Wang
exaly   +2 more sources