Optically-addressed two-terminal multicolor photodetector

摘要

A two-terminal multicolor photodetector that is most advantageous for greater than two bands isnproposed. This two-terminal design is particularly significant for focal plane arrays as it maximizesnthe fill factor and simplifies the readout integrated circuits. Individual color detection is realizednwith appropriate optical biasing. This concept is demonstrated experimentally using a three-colornphotodetector and biasing light emitting diodes. The measured linear dynamic range is greater thannfour orders of magnitude, making it a practical device for a broad range of applications. © 2010nAmerican Institute of Physics. u0004doi:10.1063/1.3505137u0005nresponse is demonstrated in second-harmonic and difference frequency generation measurementsnincluding the generation of terahertz radiation in silicon photonic nanowires using telecomnwavelength excitation pulses. © 2010 American Institute of Physics. u0004doi:10.1063/1.3503586