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Title: Dynamic bound states in the continuum

Abstract

All-dielectric metasurfaces are a versatile platform to investigate a host of unconventional physical scattering responses. Effects, including high absorption and Huygens’ surfaces, have been demonstrated; however, a more exotic materialization—termed bound states in the continuum (BSCs)—exists and consists of nonradiating localized waves that lie within the energy spectrum of the continuum. Here we experimentally demonstrate a dynamic BSC at terahertz frequencies that realizes a material-limited high-quality factor ( Q ) resonance Q = 8.7 × 10 3 , which may be modified by over 2 orders of magnitude through photodoping with band gap light. We elucidate the nature of the BSC resonance, and our experimental results are well supported by eigenvalue and S -parameter simulations. The demonstrated system and underlying theory establish a path to realize extremely high- Q dynamic resonances, which may be useful for detection of hazardous materials and frequency-diverse imaging.

Authors:
; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Duke Univ., Durham, NC (United States)
Sponsoring Org.:
USDOE Office of Science (SC); Australian Research Council (ARC); National Science Foundation (NSF); National Nanotechnology Coordinated Infrastructure (NNCI)
OSTI Identifier:
1493955
Alternate Identifier(s):
OSTI ID: 1612155
Grant/Contract Number:  
SC0014372
Resource Type:
Published Article
Journal Name:
Optica
Additional Journal Information:
Journal Name: Optica Journal Volume: 6 Journal Issue: 2; Journal ID: ISSN 2334-2536
Publisher:
Optical Society of America
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Optics

Citation Formats

Fan, Kebin, Shadrivov, Ilya V., and Padilla, Willie J. Dynamic bound states in the continuum. United States: N. p., 2019. Web. doi:10.1364/OPTICA.6.000169.
Fan, Kebin, Shadrivov, Ilya V., & Padilla, Willie J. Dynamic bound states in the continuum. United States. doi:10.1364/OPTICA.6.000169.
Fan, Kebin, Shadrivov, Ilya V., and Padilla, Willie J. Fri . "Dynamic bound states in the continuum". United States. doi:10.1364/OPTICA.6.000169.
@article{osti_1493955,
title = {Dynamic bound states in the continuum},
author = {Fan, Kebin and Shadrivov, Ilya V. and Padilla, Willie J.},
abstractNote = {All-dielectric metasurfaces are a versatile platform to investigate a host of unconventional physical scattering responses. Effects, including high absorption and Huygens’ surfaces, have been demonstrated; however, a more exotic materialization—termed bound states in the continuum (BSCs)—exists and consists of nonradiating localized waves that lie within the energy spectrum of the continuum. Here we experimentally demonstrate a dynamic BSC at terahertz frequencies that realizes a material-limited high-quality factor (Q) resonance Q=8.7×103, which may be modified by over 2 orders of magnitude through photodoping with band gap light. We elucidate the nature of the BSC resonance, and our experimental results are well supported by eigenvalue and S-parameter simulations. The demonstrated system and underlying theory establish a path to realize extremely high-Q dynamic resonances, which may be useful for detection of hazardous materials and frequency-diverse imaging.},
doi = {10.1364/OPTICA.6.000169},
journal = {Optica},
number = 2,
volume = 6,
place = {United States},
year = {2019},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1364/OPTICA.6.000169

Citation Metrics:
Cited by: 11 works
Citation information provided by
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