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RESEARCH PRODUCT

Tunable Optical Antennas Using Vanadium Dioxide Metal-Insulator Phase Transitions

Maria Antonietta VincentiC. De AngelisAndrea TognazziAndrea LocatelliClaudio Giannetti

subject

Phase transitionMaterials scienceBiophysics02 engineering and technologySubstrate (electronics)Nanoantennas Phase-changing materials Plasmonics Vanadium dioxide01 natural sciencesBiochemistrySettore FIS/03 - FISICA DELLA MATERIA010309 opticsVanadium dioxide0103 physical sciencesMetal insulatorPhase-changing materialsPlasmonNanoantennas; Phase-changing materials; Plasmonics; Vanadium dioxidebusiness.industryNanoantennasVanadium dioxideSettore ING-INF/02 - Campi Elettromagnetici021001 nanoscience & nanotechnologyDipoleNanoantennas; Phase-changing materials; Plasmonics; Vanadium dioxide; Biotechnology; Biophysics; BiochemistryOptoelectronicsPlasmonicsCondensed Matter::Strongly Correlated ElectronsAntenna (radio)0210 nano-technologybusinessBiotechnology

description

Here, we investigate the possibility of exploiting the insulator-to-metal transition in vanadium dioxide (VO2) to tune and optically control the resonances of dipole nanoantennas in the visible near-infrared region. We compare the results obtained in the case of antennas completely made by VO2 with those of previous works and highlight the key role of the substrate to perform dynamical tuning. We also present a highly efficient configuration composed of dipole gold antenna loaded with VO2 and give some general guidelines to optimally exploit phase transitions to tune nanodevices.

yearjournalcountryeditionlanguage
2019-01-01
10.1007/s11468-019-00917-whttp://hdl.handle.net/10807/132068