polarimetric imaging applications
Source PDF · page 8RESEARCH PAPER
On-chip mid-infrared photothermoelectric detectors for full-Stokes detection
Mingjin Dai, Chongwu Wang, Bo Qiang, Fakun Wang, Ming Ye, Song Han, Yu Luo, Qi Jie Wang
Research context
On-chip polarimeters are highly desirable for the next-generation ultra-compact optical and optoelectronic systems. Polarization-sensitive photodetectors relying on anisotropic absorption of natural/artificial materials have emerged as a promising candidate for on-chip polarimeters owing to their filterless configurations. However, these photodetectors can only be applied for detection of either linearly or circularly polarized light, not applicable for full-Stokes detection. Here, we propose and demonstrate three-ports polarimeters comprising on-chip chiral plasmonic metamaterial-mediated mid-infrared photodetectors for full-Stokes detection. By manipulating the spatial distribution of chiral metamaterials, we could convert polarization-resolved absorptions to corresponding polarization-resolved photovoltages of three ports through the photothermoelectric effect. We utilize the developed polarimeter in an imaging demonstration showing reliable ability for polarization reconstruction. Our work provides an alternative strategy for developing polarization-resolved photodetectors with a bandgap-independent operation range in the mid-infrared.
Source & review
Contains findings linked to source PDF pages.
three-port on-chip mid-infrared full-Stokes polarimeter
Source PDF · page 1photothermoelectric conversion of polarization-resolved absorption into photovoltage
Source PDF · page 1Cite / 引用
Mingjin Dai, Chongwu Wang, Bo Qiang, Fakun Wang, Ming Ye, Song Han, Yu Luo, Qi Jie Wang. On-chip mid-infrared photothermoelectric detectors for full-Stokes detection. Nature Communications (2022). https://doi.org/10.1038/s41467-022-32309-w
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