Electrical and Electronic Engineering - Research Publications

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Start date: 2010 × End date: 2019 × Type: Conference Paper × Author: Shrestha, Vivek × Author: Craig, Benjamin ×

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    High-resolution mid-infrared spectral reconstruction using a subwavelength coaxial aperture array
    Craig, 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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    Mid-infrared computational spectroscopy with an electrically-tunable graphene metasurface
    Shrestha, 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.