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Passive radiative "thermostat" enabled by phase-change photonic nanostructures
Wilton J. M. Kort-Kamp, Shobhita Kramadhati, Abul K. Azad +2
A thermostat senses the temperature of a physical system and switches heating or cooling devices on or off, regulating the flow of heat to maintain the system's temperature near a…
Terahertz metamaterials for linear polarization conversion and anomalous refraction
Nathaniel K. Grady, Jane E. Heyes, Dibakar Roy Chowdhury +6
Polarization is one of the basic properties of electromagnetic waves conveying valuable information in signal transmission and sensitive measurements. Conventional methods for adva…
Impact of resonator geometry and its coupling with ground plane on ultrathin metamaterial perfect absorbers
Li Huang, Dibakar Roy Chowdhury, Suchitra Ramani +5
We investigate the impact of resonator geometry and its coupling with ground plane on the performance of metamaterial perfect absorbers. Using a cross-resonator as an example struc…
Experimental demonstration of terahertz metamaterial absorbers with a broad and flat high absorption band
Li Huang, Dibakar Roy Chowdhury, Suchitra Ramani +4
We present the design, numerical simulations and experimental measurements of THz metamaterial absorbers with a broad and flat absorption top both for transverse electric and trans…