Quantum efficiency enhancement of mid infrared photodetectors with photon trapping micro-structures

2018/08/29 by Devine, Ekaterina Ponizovskaya, Cansizoglu, Hilal, Gao, Yang +5
#Applied Physics (physics.app-ph) #FOS: Physical sciences

paper · doi:10.48550/arxiv.1810.00944

Abstract

The study proposes to use the photon trapping micro-structures to enhance quantum efficiency of the mid infrared photodetectors. The nanostructure that is consist of micro holes reduces reflection and bends the near normally incident light into the lateral modes in the absorbing layer.

Related

• Enhanced quantum efficiency and reduction of reflection for MSM photodetectors with nano-structured surface
• Lateral Cavity-Enhanced Guided Mode Resonance Structures for Mid-wave Infrared Photodetector Pixels
• Maximizing absorption in photon trapping ultra-fast silicon\n photodetectors
• Quantum scattering engineering for the reduction of dark current in very long wavelength quantum well infrared photodetector
• CMOS image sensor with micro-nano holes to improve NIR optical efficiency: micro-holes on top surface vs on bottom