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Polarization-independent two-dimensional diffraction metal-dielectric grating.
- Source :
-
Applied Physics Letters . 7/23/2018, Vol. 113 Issue 4, pN.PAG-N.PAG. 4p. 2 Diagrams, 2 Graphs. - Publication Year :
- 2018
-
Abstract
- Two-dimensional (2D) diffraction gratings have been developed rapidly in several growing areas of research, but most of them were polarization sensitive with limitations toward practical applications. We report a 2D diffraction grating solution for achieving polarization-independent high efficiency property. The grating was designed and fabricated based on thin-film coatings, orthogonally lithography, and ion-beam etching technology. The measured average (−1, 0) order reflective diffraction efficiency (DE) is 74.8% (p-polarization) and 68.2% (s-polarization) from 770 nm to 790 nm and the lowest difference of DE between two polarizations is 0.593% at 785.5 nm incident wavelength of our sample. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 113
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 130962694
- Full Text :
- https://doi.org/10.1063/1.5040729