Dynamic beam splitter employing an all-dielectric metasurface based on an elastic substrate
Date
2020Source Title
Optics Letters
Print ISSN
0146-9592
Publisher
OSA - The Optical Society
Volume
45
Issue
13
Pages
3521 - 3524
Language
English
Type
ArticleItem Usage Stats
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Abstract
Beam splitters are an indispensable part of optical measurements and applications. We propose a dynamic beam splitter incorporating all-dielectric metasurface in an elastic substrate under external mechanical stimulus of stretching. The optical behavior at 720 nm wavelength shows that it can be changed from a pure optical-diode-like behavior to a dynamic beam splitter. Although the structure is designed running at 720 nm, the design approach with appropriate materials can be used at any wavelength. Various cases, including wavelength and polarization dependencies, are thoroughly investigated to demonstrate the principles of operating conditions of two different regimes of the designed metasurface.