Type-II Superlattice Infrared Sensors
In article number 2400374, Sang Jun Lee, Won Seok Chang, and co-workers fabricate a type-II superlattice mid-wavelength infrared photodetector, seamlessly integrated with a nanostructured wire grid polarizer using nanoimprint lithography. The surface of the wire grid polarizer is polished with femtosecond pulse laser, which dramatically reduces optical losses while maximizing polarization efficiency, known as the extinction ratio. This breakthrough paves the way for next-generation high-performance infrared imaging systems, revolutionizing MWIR detection with unprecedented capabilities.