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Analysis of materials selected for multilayer diffractive optical elements |
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| Authors: | Changxi Xue Suet To |
| Institution: | 1. Department of Optical Engineering, Changchun University of Science and Technology, Changchun 130022, China;2. Partner State Key Laboratory of Ultra-precision Machining Technology, Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong |
| Abstract: | An analysis model to optimize the materials selected for multilayer diffractive elements (MLDOEs) is presented with approximate Cauchy dispersion formula of refractive index and the maximum polychromatic integral diffraction efficiency (PIDE). The analysis model presents that the maximum PIDE of MLDOEs consisting of two materials with large Abbe number difference and small partial dispersion difference can be generated. The scope of application and the relationship between diffraction efficiencies of MLDOEs with different material pairs and different design wavelength pairs are presented and simulated with the analysis model of MLDOEs. |
| Keywords: | Diffractive optics Micro-optical devices Optical design and fabrication |
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