- Electrical and Electronic Engineering - Research Publications
Electrical and Electronic Engineering - Research Publications
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ItemHigh-resolution mid-infrared spectral reconstruction using a subwavelength coaxial aperture arrayCraig, B ; Meng, J ; Shrestha, VR ; Cadusch, JJ ; Crozier, KB (OSA & IEEE, 2019-01-01)We demonstrate mid-infrared computational spectroscopy using an array of coaxial aperture filters. We experimentally determine material transmission spectra using an algorithm whose inputs are the transmission spectra and the power transmitted through each filter.
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ItemMid-infrared computational spectroscopy with an electrically-tunable graphene metasurfaceShrestha, VR ; Craig, B ; Amani, M ; Bullock, J ; Javey, A ; Crozier, KB (OSA - Optical Society of America, 2019-01-01)We demonstrate graphene-plasmonic metasurfaces whose mid-infrared reflection spectra are electrically-tunable. Using measurements of the power reflected by the metasurfaces at different drive voltages, the source spectrum is computationally reconstructed by the recursive least squares method.
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ItemLong -Wave In a ed Photodetectors Based on Platinum DiselenideAzar, NS ; Shrestha, VR ; Bullock, J ; Amani, M ; Kim, H ; Javey, A ; Crozier, KB (IEEE, 2020)We demonstrate long wave infrared photodetectors based on the transition metal dichalcogenide platinum diselenide (PtSe2) in its bulk form for the first time to our knowledge. Fabricated devices show sub-millisecond response times.
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ItemVisible to Long-Wave Infrared Photodetectors based on Copper Tetracyanoquinodimethane (CuTCNQ) CrystalsBalendhran, S ; Hussain, Z ; Shrestha, VR ; Cadusch, J ; Ye, M ; Kim, H ; Ramanathan, R ; Bullock, J ; Javey, A ; Bansal, V ; Crozier, KB (OSA - Optical Society of America, 2020-08-01)We demonstrate room-temperature photodetectors at wavelengths from visible (450 nm, 532 nm) to near- (850 nm), short-wave (1550 nm), mid-wave (4.5 \mu m) and long-wave (8.35 \mu m) infrared. These are based on drop-cast Cu TCNQ crystals.