plasmonic structure

Microwave Characterization of Plasmonic Antennas and Transmission Lines at Mid-Infrared Frequencies Through Near-Field Imaging

Igor Getmanov, Ph.D. Student, Electrical and Computer Engineering

Apr 2, 04:00 - 06:00

B3 R5220

THz antennas plasmonic structure electronic integrated devices

This thesis bridges near-field imaging and microwave characterization, paving the way to future quantitative, microwave-style characterization and design of mid-IR plasmonic antennas and related integrated devices.

Spectrometer-Free Graphene Plasmonics Based Refractive Index Sensor

1 min read · Wed, Jan 1 2020

plasmonic structure Circuits spectrometer-free refractive index sensor

Li Zhang, et al., "Spectrometer-Free Graphene Plasmonics Based Refractive Index Sensor." Sensors 20 (8), 2020, 2347. We propose a spectrometer-free refractive index sensor based on a graphene plasmonic structure. The spectrometer-free feature of the device is realized thanks to the dynamic tunability of graphene’s chemical potential, through electrostatic biasing. The proposed sensor exhibits a 1566 nm/RIU sensitivity, a 250.6 RIU− 1 figure of merit in the optical mode of operation and a 713.2 meV/RIU sensitivity, a 246.8 RIU− 1 figure of merit in the electrical mode of operation. This