Nanophotonic nonlinear and laser devices exploiting bound states in the continuum

Min Soo Hwang; Kwang Yong Jeong; Jae Pil So; Kyoung Ho Kim; Hong Gyu Park

doi:10.1038/s42005-022-00884-5

Nanophotonic nonlinear and laser devices exploiting bound states in the continuum

Min Soo Hwang, Kwang Yong Jeong, Jae Pil So, Kyoung Ho Kim, Hong Gyu Park

Department of Physics

Research output: Contribution to journal › Review article › peer-review

20 Citations (Scopus)

Abstract

The quality factor (Q), describing the rate of energy loss from a resonator, is a defining performance metric for nanophotonic devices. Suppressing cavity radiative losses enables strong nonlinear optical responses or low-power operation to be achieved. Exploiting long-lived, spatially-confined bound states in the continuum (BICs) has emerged from the numerous approaches considered as a promising route to boost nanophotonic Q factors. Initial research explored the formation mechanisms of various types of BICs, drawing parallels to topological physics. With these fundamentals now established, we review the recent application of BICs in passive and active nanophotonic devices.

Original language	English
Article number	106
Journal	Communications Physics
Volume	5
Issue number	1
DOIs	https://doi.org/10.1038/s42005-022-00884-5
Publication status	Published - 2022 Dec

Bibliographical note

Funding Information:
H.-G.P. acknowledges the support from the National Research Foundation of Korea (NRF) grants funded by the Korean government (MSIT) (2021R1A2C3006781 and 2020R1A4A2002828) and the Institute for Information & Communications Technology Promotion (IITP) grant (2020-0-00841). K.-H.K. acknowledges the support from the NRF grant (NRF-2019R1C1C1006681). M.-S.H. acknowledges the support from the NRF grant (NRF-2020R1I1A1A01074347). K.-Y.J. acknowledges the support from the NRF grant (NRF-2020R1I1A1A01066655).

Publisher Copyright:
© 2022, The Author(s).

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1038/s42005-022-00884-5

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abstract = "The quality factor (Q), describing the rate of energy loss from a resonator, is a defining performance metric for nanophotonic devices. Suppressing cavity radiative losses enables strong nonlinear optical responses or low-power operation to be achieved. Exploiting long-lived, spatially-confined bound states in the continuum (BICs) has emerged from the numerous approaches considered as a promising route to boost nanophotonic Q factors. Initial research explored the formation mechanisms of various types of BICs, drawing parallels to topological physics. With these fundamentals now established, we review the recent application of BICs in passive and active nanophotonic devices.",

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note = "Funding Information: H.-G.P. acknowledges the support from the National Research Foundation of Korea (NRF) grants funded by the Korean government (MSIT) (2021R1A2C3006781 and 2020R1A4A2002828) and the Institute for Information & Communications Technology Promotion (IITP) grant (2020-0-00841). K.-H.K. acknowledges the support from the NRF grant (NRF-2019R1C1C1006681). M.-S.H. acknowledges the support from the NRF grant (NRF-2020R1I1A1A01074347). K.-Y.J. acknowledges the support from the NRF grant (NRF-2020R1I1A1A01066655). Publisher Copyright: {\textcopyright} 2022, The Author(s).",

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AU - Hwang, Min Soo

AU - Jeong, Kwang Yong

AU - So, Jae Pil

AU - Kim, Kyoung Ho

AU - Park, Hong Gyu

N1 - Funding Information: H.-G.P. acknowledges the support from the National Research Foundation of Korea (NRF) grants funded by the Korean government (MSIT) (2021R1A2C3006781 and 2020R1A4A2002828) and the Institute for Information & Communications Technology Promotion (IITP) grant (2020-0-00841). K.-H.K. acknowledges the support from the NRF grant (NRF-2019R1C1C1006681). M.-S.H. acknowledges the support from the NRF grant (NRF-2020R1I1A1A01074347). K.-Y.J. acknowledges the support from the NRF grant (NRF-2020R1I1A1A01066655). Publisher Copyright: © 2022, The Author(s).

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N2 - The quality factor (Q), describing the rate of energy loss from a resonator, is a defining performance metric for nanophotonic devices. Suppressing cavity radiative losses enables strong nonlinear optical responses or low-power operation to be achieved. Exploiting long-lived, spatially-confined bound states in the continuum (BICs) has emerged from the numerous approaches considered as a promising route to boost nanophotonic Q factors. Initial research explored the formation mechanisms of various types of BICs, drawing parallels to topological physics. With these fundamentals now established, we review the recent application of BICs in passive and active nanophotonic devices.

AB - The quality factor (Q), describing the rate of energy loss from a resonator, is a defining performance metric for nanophotonic devices. Suppressing cavity radiative losses enables strong nonlinear optical responses or low-power operation to be achieved. Exploiting long-lived, spatially-confined bound states in the continuum (BICs) has emerged from the numerous approaches considered as a promising route to boost nanophotonic Q factors. Initial research explored the formation mechanisms of various types of BICs, drawing parallels to topological physics. With these fundamentals now established, we review the recent application of BICs in passive and active nanophotonic devices.

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Nanophotonic nonlinear and laser devices exploiting bound states in the continuum

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