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.
Tognazzi, A., Locatelli, A., Vincenti, M. A., Giannetti, C., De Angelis, C., Tunable Optical Antennas Using Vanadium Dioxide Metal-Insulator Phase Transitions, <<PLASMONICS>>, 2019; 2019 (N/A): 1-6. [doi:10.1007/s11468-019-00917-w] [http://hdl.handle.net/10807/132068]
Tunable Optical Antennas Using Vanadium Dioxide Metal-Insulator Phase Transitions
Tognazzi, Andrea;Giannetti, Claudio;De Angelis, Claudio
2019
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.