Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

In-plane plasmon coupling in topological insulator Bi2Se3 thin films

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/5.0071895· OSTI ID:1830504
 [1];  [2];  [2];  [2]
  1. Univ. of Delaware, Newark, DE (United States); University of Delaware
  2. Univ. of Delaware, Newark, DE (United States)
+ Show Author Affiliations
The surface states of the 3D topological insulator (TI), Bi2Se3, are known to host two-dimensional Dirac plasmon polaritons (DPPs) in the terahertz spectral range. In TI thin films, the DPPs excited on the top and bottom surfaces couple, leading to an acoustic mode and an optical plasmon mode. Vertical coupling in these materials is, therefore, reasonably well-understood, but in-plane coupling among localized TI DPPs has yet to be investigated. In this paper, we demonstrate in-plane DPP coupling in TI stripe arrays and show that they exhibit dipole–dipole type coupling. Here, the coupling becomes negligible when the lattice constant is greater than approximately 2.8 times the stripe width, which is comparable to results for in-plane coupling of localized plasmons excited on metallic nanoparticles or graphene plasmon polaritons. This understanding could be leveraged for the creation of TI-based metasurfaces.
Research Organization:
Univ. of Delaware, Newark, DE (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0017801
OSTI ID:
1830504
Alternate ID(s):
OSTI ID: 1830880
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 20 Vol. 119; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (31)

Ultrasensitive Room-Temperature Terahertz Direct Detection Based on a Bismuth Selenide Topological Insulator journal May 2018
Plasmon-Phonon Interactions in Topological Insulator Microrings journal April 2015
Coupled Dirac Plasmons in Topological Insulators journal April 2018
Plasmonics: Fundamentals and Applications book January 2007
Analytical Approach to the Surface Plasmon Resonance Characteristic of Metal Nanoparticle Dimer in Dipole-Dipole Approximation journal June 2020
Optical properties of two interacting gold nanoparticles journal May 2003
Plasma-Wave Terahertz Detection Mediated by Topological Insulators Surface States journal December 2015
Observation of Magnetoplasmons in Bi 2 Se 3 Topological Insulator journal August 2015
Near-Field Imaging of Surface Plasmons from the Bulk and Surface State of Topological Insulator Bi 2 Te 2 Se journal September 2019
Plasmonic Nanoantennas: Fundamentals and Their Use in Controlling the Radiative Properties of Nanoemitters journal June 2011
On the Use of Plasmonic Nanoparticle Pairs As a Plasmon Ruler: The Dependence of the Near-Field Dipole Plasmon Coupling on Nanoparticle Size and Shape journal December 2008
Interparticle Coupling Effects on Plasmon Resonances of Nanogold Particles journal August 2003
Strongly Interacting Plasmon Nanoparticle Pairs:  From Dipole−Dipole Interaction to Conductively Coupled Regime journal September 2004
On the Universal Scaling Behavior of the Distance Decay of Plasmon Coupling in Metal Nanoparticle Pairs: A Plasmon Ruler Equation journal July 2007
Tunability of Subradiant Dipolar and Fano-Type Plasmon Resonances in Metallic Ring/Disk Cavities: Implications for Nanoscale Optical Sensing journal February 2009
Observation of Dirac plasmons in a topological insulator journal July 2013
Optoelectronic devices, plasmonics, and photonics with topological insulators journal March 2017
Cutting a Gordian Knot: Dispersion of plasmonic modes in Bi 2 Se 3 topological insulator journal May 2017
Plasmonics in Dirac systems: from graphene to topological insulators journal March 2014
Terahertz plasmonic excitations in Bi 2 Se 3 topological insulator journal March 2017
Plasmonics of coupled graphene micro-structures journal December 2012
Propagating Dirac plasmon polaritons in topological insulators journal November 2020
Topological insulators for high-performance terahertz to infrared applications journal December 2010
Spin-charge separation of plasmonic excitations in thin topological insulators journal November 2013
Interplay of Surface and Dirac Plasmons in Topological Insulators: The Case of Bi 2 Se 3 journal November 2015
Surface Collective Modes in the Topological Insulators Bi 2 Se 3 and Bi 0.5 Sb 1.5 Te 3 − x Se x journal December 2015
Terahertz Tuning of Dirac Plasmons in Bi 2 Se 3 Topological Insulator journal June 2020
Plasmon coupling in topological insulator multilayers journal November 2020
Growth of Bi 2 Se 3 topological insulator films using a selenium cracker source
  • Ginley, Theresa P.; Law, Stephanie
  • Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, Vol. 34, Issue 2 https://doi.org/10.1116/1.4941134
journal March 2016
Nonlabeled detection of specific intermolecular bondings by terahertz surface plasmon resonance of topological insulator journal January 2021
Nonlabeled detection of specific intermolecular bondings by terahertz surface plasmon resonance of topological insulator collection January 2021

Similar Records

Plasmon coupling in topological insulator multilayers
Journal Article · Sun Nov 08 19:00:00 EST 2020 · Physical Review Materials · OSTI ID:1772565

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS