Polarization modal analysis of Tamm plasmon at the metal-DBR interface for temperature sensing

Partha Sona Maji, Amit Ranjan Maity

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We present a comprehensive analysis for Transverse Electric (TE) and Transverse Magnetic (TM) polarized guided optical Tamm-plasmon (OTP) mode at metal–distributed Bragg reflector interface for temperature sensing device applications. The performance of both the polarized light has been investigated in terms of sensing parameters and corresponding sensitivity variation for a wide temperature tuning in a Ta2O5/SiO2 bilayer system on the plasmonic material of Ag for different angle of incidence (AOI). The guided OTP-modes (TE and TM) exhibit different interesting sensing characteristics which can be tailored/extended as per the desired application. The variation of the sensing parameters changes gradually for TE polarization whereas TM polarization presents different characteristics compared to their TE counterpart for a variation of the AOI. It has been observed that TE mode presents gradual decreasing of ΔR for an increment of AOI while TM polarization presents a decreasing followed by an increasing variation. Though resonance wavelength (λres) variations of both the polarization remain the same, the most contrasting variation could be observed for the detection accuracy (DA) variation. The value of DA decreases for TM mode for an increment of AOI, while a complete opposite variation could be observed for the TE polarization.

Original languageEnglish
Article number349
JournalOptical and Quantum Electronics
Volume54
Issue number6
DOIs
StatePublished - 1 Jun 2022
Externally publishedYes

Keywords

  • Photonic crystal
  • Quality factor
  • Sensitivity
  • Tamm plasmon
  • Temperature sensor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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