GaAs Linear Polarizer with a High Extinction Ratio for Extended Short-Wave Infrared Detection
نویسندگان
چکیده
Metasurfaces have shown an unprecedented ability to modulate electromagnetic waves at subwavelength scales, especially polarized optical metasurfaces, applied for imaging, navigation and detection. In this work, a kind of efficient all-dielectric diatomic metasurface polarization phase changing, consisting pair GaAs nanopillar nanocube, is proposed. By adjusting the unit cell structural parameters, state can be controlled adjusted short-wave infrared (SWIR) band (1~3 μm). At wavelength 2125 nm, maximum transmission efficiency, extinction ratio linear degree reach 93.76%, 40.99 dB 0.99, respectively. Overall, has broad application potential in extended SWIR
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ژورنال
عنوان ژورنال: Photonics
سال: 2023
ISSN: ['2304-6732']
DOI: https://doi.org/10.3390/photonics10050489