Acta Optica Sinica, Volume. 39, Issue 3, 0305001(2019)
Optimal Design for Multi-Layer Diffractive Optical Elements with Antireflection Films
On the basis of the equivalent-medium theory and the body phase delay of multi-layer diffractive optical elements, considering the influences of phase modulation caused by antireflection films, the surface microstructural parameters of multi-layer diffractive optical elements are optimized to realize the diffraction efficiency of 100% at the design wavelengths and the high polychromatic integral diffraction efficiency within a broad waveband. With this optimal design method, the diffraction efficiency and polychromatic integral diffraction efficiency of multi-layer diffractive optical elements with antireflection films working in visible wavebands are analyzed. The results show that with this optimal design method, the diffraction efficiency of 100% at the designed wavelengths and the high polychromatic integral diffraction efficiency within a broad waveband can be achieved under the premise of ensuring the physical effects of antireflection films. This method makes up for the traditional design defects of multi-layer diffractive optical elements and improves the design theory of multi-layer diffractive optical elements, which provides a reference for the design of hybrid imaging systems.
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Shan Mao, Jianlin Zhao. Optimal Design for Multi-Layer Diffractive Optical Elements with Antireflection Films[J]. Acta Optica Sinica, 2019, 39(3): 0305001
Category: Diffraction and Gratings
Received: Oct. 8, 2018
Accepted: Oct. 30, 2018
Published Online: May. 10, 2019
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