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
 

Achieving extreme light confinement in low-index dielectric resonators through quasi-bound states in the continuum

Journal Article · · Optics Letters
DOI:https://doi.org/10.1364/ol.445411· OSTI ID:1968729
 [1];  [2]
  1. Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Chicago, IL (United States)
  2. Argonne National Lab. (ANL), Lemont, IL (United States); Univ. of Chicago, IL (United States); Northwestern Univ., Evanston, IL (United States)
+ Show Author Affiliations
Obtaining large field enhancement in low-refractive-index dielectric materials is highly relevant to many photonic and quantum optics applications. However, confining light in these materials is challenging, owing to light leakage through coupling to continuum modes in the surrounding environment. Here, we investigate the possibility of achieving high quality factors in low-index dielectric resonators through the bound states in the continuum (BIC). Our simulations demonstrate that destructive interference between leaky modes can be achieved by tuning the geometrical parameters of the resonator arrays, leading to the emergence of quasi-BIC in resonators that have a small index contrast to the underlying substrates. The resultant large field enhancement gives rise to giant quality factors and Purcell effects. By introducing vertical mirror symmetry, the quasi-BIC can be tuned into an ideal BIC. In addition, the quasi-BIC can modify the emission patterns of the coupled emitters, rendering highly directional and focused far-field emission. These findings may provide a path for the practical implementation of photonic and quantum devices based on low-index dielectric materials.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1968729
Alternate ID(s):
OSTI ID: 1835654
Journal Information:
Optics Letters, Journal Name: Optics Letters Journal Issue: 24 Vol. 46; ISSN 0146-9592
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

References (24)

Resonant Lattice Kerker Effect in Metasurfaces With Electric and Magnetic Optical Responses journal October 2017
Trapping Light in Plain Sight: Embedded Photonic Eigenstates in Zero-Index Metamaterials journal April 2018
Enhanced Third Harmonic Generation in Single Germanium Nanodisks Excited at the Anapole Mode journal June 2016
Quantum Dot Emission Driven by Mie Resonances in Silicon Nanostructures journal October 2017
Toward Cavity Quantum Electrodynamics with Hybrid Photon Gap-Plasmon States journal November 2016
Solitary Oxygen Dopant Emission from Carbon Nanotubes Modified by Dielectric Metasurfaces journal May 2017
Anapole Resonances Facilitated by High-Index Contrast between Substrate and Dielectric Nanodisk Enhance Vacuum Ultraviolet Generation journal November 2018
Exploiting Native Al 2 O 3 for Multispectral Aluminum Plasmonics journal November 2014
Structural Colors from Fano Resonances journal January 2015
Bound states in the continuum journal July 2016
Room-temperature single-photon generation from solitary dopants of carbon nanotubes journal July 2015
Photonic crystal cavities from hexagonal boron nitride journal July 2018
Directional lasing in resonant semiconductor nanoantenna arrays journal August 2018
Silicon Mie resonators for highly directional light emission from monolayer MoS2 journal April 2018
Optical properties of II-VI colloidal quantum dot doped porous silicon microcavities journal April 2010
Resonant tunneling in a quantum waveguide: Effect of a finite-size attractive impurity journal October 1999
Optical response features of Si-nanoparticle arrays journal July 2010
Giant gain enhancement in photonic crystals with a degenerate band edge journal January 2016
High- Q Supercavity Modes in Subwavelength Dielectric Resonators journal December 2017
Visualizing Mie Resonances in Low-Index Dielectric Nanoparticles journal June 2018
Subradiant Emission from Regular Atomic Arrays: Universal Scaling of Decay Rates from the Generalized Bloch Theorem journal December 2020
Optically resonant dielectric nanostructures journal November 2016
Subwavelength dielectric resonators for nonlinear nanophotonics journal January 2020
Strong magnetic response of submicron Silicon particles in the infrared journal January 2011

Similar Records

Directive giant upconversion by supercritical bound states in the continuum
Journal Article · Tue Feb 20 19:00:00 EST 2024 · Nature (London) · OSTI ID:2429230
Terahertz bound state in the continuum in dielectric membrane metasurfaces
Journal Article · Wed May 04 20:00:00 EDT 2022 · New Journal of Physics · OSTI ID:1866671

Related Subjects

42 ENGINEERING