Morgan Bergthold

Jun 5, 2023 | opg.optica.org | Morgan Bergthold |Alexander Ware |C. Harris |Noah Mansfield

AbstractWe present a spectrally selective, passively cooled mid-wave infrared bolometric absorber engineered to spatially and spectrally decouple infrared absorption and thermal emission. The structure leverages an antenna-coupled metal–insulator–metal resonance for mid-wave infrared normal incidence photon absorption and a long-wave infrared optical phonon absorption feature, aligned closer to peak room temperature thermal emission.