Lensless Polarimetric Imaging and Encryption Enabled by Te/ReSe2 van der Waals Heterostructure Polarization-Sensitive Photodetector

device offers a broad spectral photoresponse (300-965 nm), a high polarization ratio of 8.9, and a fast response time of 55.4/55.7 μs at 635 nm. These properties enable high-resolution polarimetric imaging and precise image processing. This study provides a blueprint for developing miniaturized polarization-sensitive photodetectors and advancing lensless polarimetric optoelectronics.