Enhanced diffraction efficiency of two-dimensional phase gratings | Zendy

U. U. Graf | Zendy

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Enhanced diffraction efficiency of two-dimensional phase gratings

Author(s) -

U. U. Graf

Publication year - 2018

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.032739

Subject(s) - optics , grating , diffraction efficiency , diffraction grating , multiplexer , superposition principle , terahertz radiation , blazed grating , materials science , diffraction , phase (matter) , beam (structure) , ptychography , physics , optoelectronics , multiplexing , computer science , telecommunications , quantum mechanics

Phase gratings are used as beam multiplexers in the submillimeter and Terahertz spectral range. Two-dimensional beam arrangements can often be obtained most easily by the superposition of two one-dimensional grating structures. We show that in general this approach does not yield the maximum grating efficiency and propose a method to obtain significantly higher efficiencies for this grating class.

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