Black Phosphorus-Based Absorbing Bionic Stacked Structured Linear Polarization Detector

摘要

Polarization detection technology is developing toward miniaturization andhigh integration from the early time-division type, amplitude-division type,aperture-division type, etc., to a more integrated focal plane-integrated arraytype. Focal plane detectors that rely on metal nanogrids are not able to guaranteeboth temporal and spatial resolution for lossless polarized light detectionwith a guaranteed level of integration. Inspired by Agabus japonicus,the black phosphorus (BP)-based absorbing bionic stacked structured linearpolarization detector (BSLD) is proposed. The BSLD exploits the polarizationabsorption properties of BP to achieve near-lossless linear polarizationdetection. The design includes two orthogonally aligned polarization- andangle-sensitive BP photodetectors. The detection performance of the detectoris investigated and analyzed under a green laser beam (wavelength 532 nm).The BSLD designed in this paper can simultaneously measure the multi-anglecomponent information of the incident light at one point in space in orderto resolve the polarization state of the incident light, providing a potentialsolution for an integrated, real-time, and high-resolution loss-free polarizationimage sensor.