Ultrafast Electronic Readout From A Plasmonic Bolometer: Hot Electron Dynamics And Polarization Imaging ApplicationsPaper (OPTO2)
Wed, 11 Nov 2020 12:45am to 01:00am
We developed a grating-based plasmonic bolometer that features an optoelectronic behavior that is enhanced by plasmonic losses. In our system, optically-induced surface plasmons interact with conduction electrons in the metal, resulting in an increase in electron scattering and a detectable change in resistance. These scattering processes occur on extremely short timescales, indicating that these detectors may prove useful for monitoring fast processes. The wavelength response of our device is strongly dependent on physical dimensions of the nanograting and thus tunable in a wide range. Additionally, the polarization-dependent plasmonic response can be utilized for polarization imaging applications without polarization optics.
Download Abstract: f1-4888968-pid6596711.pdf
Authors: Xu, Guangpeng; Kilinc, Muhammed; Chen, Borui; Cheney, Alec; Thomay, Tim
University at Buffalo