Sub-micron pixel polarization-sensitive photodetector based on silicon nanowire.
Opt Express
; 32(8): 13128-13139, 2024 Apr 08.
Article
em En
| MEDLINE
| ID: mdl-38859291
ABSTRACT
Silicon nanowire is a potential candidate to be used as polarization-sensitive material, but the relative mechanism of polarization response must be carried out. Herein, a sub-micron metal-single silicon nanowire-metal photodetector exhibits polarization-sensitive characteristics with an anisotropic photocurrent ratio of 1.59 at 780â
nm, an excellent responsivity of 24.58â
mA/W, and a high detectivity of 8.88 × 109 Jones at 980â
nm. The underlying principle of optical anisotropy in silicon nanowire is attributed to resonance enhancement verified by polarizing light microscopy and simulation. Furthermore, Stokes parameter measurements and imaging are all demonstrated by detecting the characteristics of linearly polarized light and imaging the polarizer array, respectively. Given the maturity of silicon processing, the sub-micron linearly polarized light detection proposed in this study lays the groundwork for achieving highly integrated, simplified processes, and cost-effective on-chip polarization-sensitive optical chips in the future.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Express
Ano de publicação:
2024
Tipo de documento:
Article