Multifrequency superscattering from subwavelength hyperbolic structures

Superscattering, that is, a phenomenon of the scattering cross section from a subwavelength object exceeding the single-channel limit, has important prospects in enhanced sensing/spectroscopy, solar cells, and biomedical imaging. Superscattering can be typically constructed only at a single frequenc...

Full description

Bibliographic Details
Main Authors: Qian, Chao, Lin, Xiao, Yang, Yi, Gao, Fei, Shen, Yichen, Lopez, Josue, Kaminer, Ido, Zhang, Baile, Li, Erping, Soljačić, Marin, Chen, Hongsheng
Other Authors: School of Physical and Mathematical Sciences
Format: Journal Article
Language:English
Published: 2019
Subjects:
Online Access:https://hdl.handle.net/10356/85189
http://hdl.handle.net/10220/50275
_version_ 1811691696373628928
author Qian, Chao
Lin, Xiao
Yang, Yi
Gao, Fei
Shen, Yichen
Lopez, Josue
Kaminer, Ido
Zhang, Baile
Li, Erping
Soljačić, Marin
Chen, Hongsheng
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Qian, Chao
Lin, Xiao
Yang, Yi
Gao, Fei
Shen, Yichen
Lopez, Josue
Kaminer, Ido
Zhang, Baile
Li, Erping
Soljačić, Marin
Chen, Hongsheng
author_sort Qian, Chao
collection NTU
description Superscattering, that is, a phenomenon of the scattering cross section from a subwavelength object exceeding the single-channel limit, has important prospects in enhanced sensing/spectroscopy, solar cells, and biomedical imaging. Superscattering can be typically constructed only at a single frequency regime, and depends critically on the inescapable material losses. Under such realistic conditions, superscattering has not been predicted nor observed to exist simultaneously at multiple frequency regimes. Here we introduce multifrequency superscattering in a subwavelength hyperbolic structure, which can be made from artificial metamaterials or from naturally existing materials, such as hexagonal boron nitride (BN), and show the advantage of such hyperbolic materials for reducing structural complexity. The underlying mechanism is revealed to be the multimode resonances at multiple frequency regimes as appear in BN due to the peculiar dispersion of phonon-polaritons. Importantly, the multifrequency superscattering has a high tolerance to material losses and some structural variations, bringing the concept of multifrequency superscattering closer to useful and realistic conditions.
first_indexed 2024-10-01T06:24:00Z
format Journal Article
id ntu-10356/85189
institution Nanyang Technological University
language English
last_indexed 2024-10-01T06:24:00Z
publishDate 2019
record_format dspace
spelling ntu-10356/851892023-02-28T19:31:39Z Multifrequency superscattering from subwavelength hyperbolic structures Qian, Chao Lin, Xiao Yang, Yi Gao, Fei Shen, Yichen Lopez, Josue Kaminer, Ido Zhang, Baile Li, Erping Soljačić, Marin Chen, Hongsheng School of Physical and Mathematical Sciences Centre for Disruptive Photonic Technologies Hyperbolic Structure Science::Physics Superscattering Superscattering, that is, a phenomenon of the scattering cross section from a subwavelength object exceeding the single-channel limit, has important prospects in enhanced sensing/spectroscopy, solar cells, and biomedical imaging. Superscattering can be typically constructed only at a single frequency regime, and depends critically on the inescapable material losses. Under such realistic conditions, superscattering has not been predicted nor observed to exist simultaneously at multiple frequency regimes. Here we introduce multifrequency superscattering in a subwavelength hyperbolic structure, which can be made from artificial metamaterials or from naturally existing materials, such as hexagonal boron nitride (BN), and show the advantage of such hyperbolic materials for reducing structural complexity. The underlying mechanism is revealed to be the multimode resonances at multiple frequency regimes as appear in BN due to the peculiar dispersion of phonon-polaritons. Importantly, the multifrequency superscattering has a high tolerance to material losses and some structural variations, bringing the concept of multifrequency superscattering closer to useful and realistic conditions. MOE (Min. of Education, S’pore) Accepted version 2019-10-29T07:56:46Z 2019-12-06T15:59:05Z 2019-10-29T07:56:46Z 2019-12-06T15:59:05Z 2018 Journal Article Qian, C., Lin, X., Yang, Y., Gao, F., Shen, Y., Lopez, J., . . . Chen, H. (2018). Multifrequency superscattering from subwavelength hyperbolic structures. ACS Photonics, 5(4), 1506-1511. doi:10.1021/acsphotonics.7b01534 https://hdl.handle.net/10356/85189 http://hdl.handle.net/10220/50275 10.1021/acsphotonics.7b01534 en ACS Photonics This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Photonics, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsphotonics.7b01534 16 p. application/pdf
spellingShingle Hyperbolic Structure
Science::Physics
Superscattering
Qian, Chao
Lin, Xiao
Yang, Yi
Gao, Fei
Shen, Yichen
Lopez, Josue
Kaminer, Ido
Zhang, Baile
Li, Erping
Soljačić, Marin
Chen, Hongsheng
Multifrequency superscattering from subwavelength hyperbolic structures
title Multifrequency superscattering from subwavelength hyperbolic structures
title_full Multifrequency superscattering from subwavelength hyperbolic structures
title_fullStr Multifrequency superscattering from subwavelength hyperbolic structures
title_full_unstemmed Multifrequency superscattering from subwavelength hyperbolic structures
title_short Multifrequency superscattering from subwavelength hyperbolic structures
title_sort multifrequency superscattering from subwavelength hyperbolic structures
topic Hyperbolic Structure
Science::Physics
Superscattering
url https://hdl.handle.net/10356/85189
http://hdl.handle.net/10220/50275
work_keys_str_mv AT qianchao multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT linxiao multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT yangyi multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT gaofei multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT shenyichen multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT lopezjosue multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT kaminerido multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT zhangbaile multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT lierping multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT soljacicmarin multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures
AT chenhongsheng multifrequencysuperscatteringfromsubwavelengthhyperbolicstructures