PhD thesis supervisor: dr. Irmantas Kašalynas (apply for recommendation)
Plasmonic antennas integration with field-effect transistors for enhanced THz detection
This research focuses on the development and integration of plasmonic antennas with field-effect transistors (FETs) to enhance performance of terahertz (THz) detectors. Plasmonic structures can be developed to concentrate electromagnetic energy at sub-wavelength scales, thereby enhancing the interaction between incoming THz radiation and the active channel of the FET.
In this work we aim to improve detection efficiency, responsivity, and operating bandwidth by combining the high electron mobility transistors (HEMTs) with the resonant of plasmonic antennas. PhD student by using numerical (CST Studio) and experiemntal (clean room facilities for fabrication and spectroscopic THz imaging setups for chracterisation of THz detector performance) means will study suitable antenna geometries and fabrication designs for enhaced room-temperature operation and potential on-chip integration of the THz antenna coupled FETs (TeraFETs). Moreover, PhD student will also focus on researc and development of the modfied edgeFETs, recently proposed in our group at THz photonics laboratory, FTMC.