PLASMONIC FIELD-ENHANCED PHOTODETECTOR AND IMAGE SENSOR USING LIGHT ABSORBING LAYER HAVING SPLIT CONDUCTION BAND AND VALENCE BAND

摘要

A plasmonic field-enhanced photodetector is disclosed. The photodetector absorbs surface plasmon polaritons (SPPs) by using a light absorbing layer having a conduction band and a valence band in which an energy is split, the SPPs being generated by combining surface plasmons (SPs) with photons of a light wave, and generates photocurrent based on the absorbed SPPs.