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We report the design, fabrication, and measurements of reconfigurable terahertz (THz) filters using vanadium dioxide (VO2) phase-change material (PCM), which undergoes a transition between an insulator and metal phase at 68 °C (∼341 K). The filters are made of frequency selective surfaces (FSS) and heater are integrated for VO2 excitation. Two THz spatial filters are developed. A broadband on/off...
We propose a reconfigurable terahertz (THz) filter using frequency selective surfaces (FSS) combined with vanadium dioxide (VO2) phase change materials (PCMs) integrated with micro-heater for THz applications. The integration of novel material and micro-heater with our FSS design enables simultaneous control of temperature and conductivity of the PCM film leading to transmittance profile control of...
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