Thanks to an optimized nanostructures arrange- ment, we report on temperature variation of 250◦C by impinging a plasmonic device with a green laser radiation. This great temperature value is caused by the strong confinement of electric field that is due to the covering gold nano heaters with a layer of polymer + dye. A chopper-modulated impinging wave adds a new control mechanism of the thermal response. In this configuration, the proposed device reveals a maximum temperature variation of 60◦C in a period (1Hz frequency). This photo-thermal behaviour can be useful for the development of breakthrough devices in emerging fields of precision medicine and nano reactor where the control of local heating is of paramount importance.
High efficient plasmonic nano heaters
Lio, Giuseppe Emanuele;
2022-01-01
Abstract
Thanks to an optimized nanostructures arrange- ment, we report on temperature variation of 250◦C by impinging a plasmonic device with a green laser radiation. This great temperature value is caused by the strong confinement of electric field that is due to the covering gold nano heaters with a layer of polymer + dye. A chopper-modulated impinging wave adds a new control mechanism of the thermal response. In this configuration, the proposed device reveals a maximum temperature variation of 60◦C in a period (1Hz frequency). This photo-thermal behaviour can be useful for the development of breakthrough devices in emerging fields of precision medicine and nano reactor where the control of local heating is of paramount importance.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
