| abstract |
Methods and structures for providing single-color or multi-color photo-detectors leveraging cavity resonance for performance benefits. In one example, a radiation detector ( 110 ) includes a semiconductor absorber layer ( 210, 410 A, 410 B, 610, 810, 1010, 1030, 1210, 1230 ) having a first electrical conductivity type and an energy bandgap responsive to radiation in a first spectral region, a semiconductor collector layer ( 220, 630, 830, 1020, 1040 ) coupled to the absorber layer ( 210, 410 A, 41013, 610, 810, 1010, 1030, 1210, 1230 ) and having a second electrical conductivity type, and a resonant cavity coupled to the collector layer ( 220, 630, 830, 1020, 1040 ) and having a first mirror ( 240 ) and a second mirror ( 245 ). |