High-sensitivity plasmonic refractive index sensing using graphene
Journal article, 2017

We theoretically demonstrate a high-sensitivity graphene-plasmon-based refractive index sensor working in the mid-infrared at room temperature. The bulk figure of merit of our sensor reaches values above 10, but the key aspect of our proposed plasmonic sensor is its surface sensitivity, which we examine in detail. We have used realistic values regarding doping level and electron relaxation time, which is the limiting factor for the sensor performance. Our results show quantitatively the high performance of graphene-plasmon-based refractive index sensors working in the mid-infrared.





Tobias Wenger

Chalmers, Microtechnology and Nanoscience (MC2)

Giovanni Viola

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Jari Kinaret

Chalmers, Physics, Condensed Matter Theory

Mikael Fogelström

Chalmers, Microtechnology and Nanoscience (MC2)

Philippe Tassin

Chalmers, Physics, Condensed Matter Physics

2D Materials

2053-1583 (eISSN)

Vol. 4 2 25103- 025103

Areas of Advance

Nanoscience and Nanotechnology (SO 2010-2017, EI 2018-)

Materials Science


C3SE (Chalmers Centre for Computational Science and Engineering)

Subject Categories

Condensed Matter Physics



More information

Latest update

4/5/2022 6