Arrays of doped and un-doped semiconductors for sensor applications

Thierry Taliercio; Vilianne N'Tsame Guilengui; Eric TourniÃ©

META 2021, META'12

Thierry Taliercio, Vilianne N'Tsame Guilengui, Eric TourniÃ©

Last modified: 2012-01-06

Abstract

This theoretical work propose to use a lamellar grating of doped semiconductors as the active region of a nanoplasmonic biosensing device. Working with highly doped semiconductors instead of a metal allows controlling the value of the plasma frequency. It is possible to reach the plasma frequency close to the range of detection of the sensor to improve its sensitivity. It is possible to reach a red-shift of the plamsonic resonance of 10.2 nm for a 10^-2 refractive index unit (RIU) increase.

Keywords

metamaterials; plasmonics;sensor