Auto-collimation diffraction of two-dimensional metal–dielectric grating with azimuth angle of 45°
Abstract: Grating under auto-collimation configuration with polarization-independent high diffraction efficiency plays an important role in the displacement measurement system, spectral beam combining system and so on. In this paper, we proposed, for the first time, a reflective two-dimensional metal-dielectric grating of which the (−1, −1) order beam is diffracted back along the input light direction, when the incident azimuth angle is 45°. With optimized structure, the (−1, −1) order diffraction efficiencies of transverse electric polarization (TE) and transverse magnetic polarization (TM) are 95.01 % and 95.04 % at incident wavelength of 632 nm, respectively. The structure based on the frustum of a cone performs well in manufacturing tolerance, which provides possibility for practical applications. A grating is fabricated experimentally in this research. The high efficiencies of TE and TM polarization have great application potential in 2D displacement measurement technique and high power laser systems.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Auto-collimation diffraction of two-dimensional metal–dielectric grating with azimuth angle of 45° ; volume:14 ; number:1 ; year:2025 ; pages:33-41 ; extent:9
Nanophotonics ; 14, Heft 1 (2025), 33-41 (gesamt 9)
- Creator
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Wang, Yi-Han
Wang, Jin
Chen, Yu-Da
Huang, Zhi-Sen
Jia, Wei
Zhou, Chang-He
- DOI
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10.1515/nanoph-2024-0399
- URN
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urn:nbn:de:101:1-2501210243436.109796375039
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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15.08.2025, 7:29 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Wang, Yi-Han
- Wang, Jin
- Chen, Yu-Da
- Huang, Zhi-Sen
- Jia, Wei
- Zhou, Chang-He
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