Topological Engineering of Interfacial Optical Tamm States for Highly Sensitive Near-Singular-Phase Optical Detection
Name
Topological Engineering of Interfacial Optical Tamm States for Highly Sensitive Near-Singular-Phase Optical Detection.pdf
Size
3.19 MB
Format
Adobe PDF
Checksum (MD5)
20956950cdc65b78bc50ba615e671ce6
Author(s)
Boriskin, Victor N.
Semenov, Alexander
Ayzatsky, Mykola I.
Machekhin, Yuri P.
Tsurimaki, Yoichiro
Tong, Jonathan K.
Chen, Gang
Boriskina, Svetlana V
Date Issued
March 2018
Journal
ACS Photonics
Publisher
American Chemical Society (ACS)
Citation
Tsurimaki, Yoichiro et al. “Topological Engineering of Interfacial Optical Tamm States for Highly Sensitive Near-Singular-Phase Optical Detection.” ACS Photonics 5, 3 (January 2018): 929–938 © 2018 American Chemical Society
Version
Author's final manuscript
Abstract
We developed planar multilayered photonic-plasmonic structures, which support topologically protected optical states on the interface between metal and dielectric materials, known as optical Tamm states. Coupling of incident light to the Tamm states can result in perfect absorption within one of several narrow frequency bands, which is accompanied by a singular behavior of the phase of electromagnetic field. In the case of near-perfect absorptance, very fast local variation of the phase can still be engineered. In this work, we theoretically and experimentally demonstrate how these drastic phase changes can improve sensitivity of optical sensors. A planar Tamm absorber was fabricated and used to demonstrate remote near-singular-phase temperature sensing with an over an order of magnitude improvement in sensor sensitivity and over 2 orders of magnitude improvement in the figure of merit over the standard approach of measuring shifts of resonant features in the reflectance spectra of the same absorber. Our experimentally demonstrated phase-to-amplitude detection sensitivity improvement nearly doubles that of state-of-the-art nanopatterned plasmonic singular-phase detectors, with further improvements possible via more precise fabrication. Tamm perfect absorbers form the basis for robust planar sensing platforms with tunable spectral characteristics, which do not rely on low-throughput nanopatterning techniques. Keywords: bio(chemical) and temperature sensing; geometrical phase; optical impedance; photonic crystals; singular phase detection; surface modes; Tamm plasmons
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/ACSPHOTONICS.7B01176
