Highly-sensitive plasmonic nano-ring transistor for monolithic terahertz active antenna

Min Woo Ryu, Ramesh Patel, Esan Jang, Sang Hyo Ahn, Hyeong Ju Jeon, Mun Seok Choe, Eunmi Choi, Ki Jin Han, Kyung Rok Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We report a highly-sensitive plasmonic nano-ring transistor for monolithic terahertz (THz) active antenna. By designing an ultimate asymmetric transistor on a metal-gate structure, more enhanced (180 times) channel charge asymmetry has been obtained in comparison with a bar-type asymmetric transistor of our previous work. In addition, by exploiting ring-type transistor itself as a monolithic circular active antenna, which is designed for a 0.12-THz resonance frequency, we experimentally demonstrated the highly-enhanced responsivity (RV) > 1 kV/W (x 5) and reduced noise-equivalent power (NEP) < 10 pW/Hz0.5 (x 1/10).

Original languageEnglish
Title of host publication2017 IEEE 17th International Conference on Nanotechnology, NANO 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages17-21
Number of pages5
ISBN (Electronic)9781509030286
DOIs
StatePublished - 21 Nov 2017
Event17th IEEE International Conference on Nanotechnology, NANO 2017 - Pittsburgh, United States
Duration: 25 Jul 201728 Jul 2017

Publication series

Name2017 IEEE 17th International Conference on Nanotechnology, NANO 2017

Conference

Conference17th IEEE International Conference on Nanotechnology, NANO 2017
Country/TerritoryUnited States
CityPittsburgh
Period25/07/1728/07/17

Keywords

  • monolithic active antenna
  • nano-ring transistor
  • noise-equivalent power
  • plasmonic
  • responsivity

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