Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Bumki Min"'
Autor:
Yung Kim, Hee Chul Park, Minwook Kyung, Kyungmin Lee, Jung-Wan Ryu, Oubo You, Shuang Zhang, Bumki Min, Moon Jip Park
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-7 (2023)
Abstract Non-trivial linking invariant encodes robust information of topological matter. It has been recently shown that the linking and winding of complex eigenenergy strings can classify one-dimensional non-Hermitian topological matter. However, in
Externí odkaz:
https://doaj.org/article/09f3d9bec2cc462c9bd43992e5dd147b
Autor:
Soojeong Baek, Sang Hyun Park, Donghak Oh, Kanghee Lee, Sangha Lee, Hosub Lim, Taewoo Ha, Hyun Sung Park, Shuang Zhang, Lan Yang, Bumki Min, Teun-Teun Kim
Publikováno v:
Light: Science & Applications, Vol 12, Iss 1, Pp 1-10 (2023)
We report the precise real-time probing of chiral exceptional points with an electrical and spectral method and the consequences of chiral mode collapsing by an active platform of hybridised non-Hermitian metasurfaces with gated graphene microribbons
Externí odkaz:
https://doaj.org/article/b876d1055ab64adeba5be00a83e14af8
Autor:
Woo Young Kim, Hyeon-Don Kim, Teun-Teun Kim, Hyun-Sung Park, Kanghee Lee, Hyun Joo Choi, Seung Hoon Lee, Jaehyeon Son, Namkyoo Park, Bumki Min
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Metamaterial memory devices often require a large stimulus to switch states or suffer from poor thermal stability. Here, the authors fabricate a terahertz metadevice driven by ferroelectric and graphene layers, and obtain multiple level memory device
Externí odkaz:
https://doaj.org/article/a3d38984391f405c82d81f83d4cd8df1
Autor:
Hyunwoo Park, Sodam Jeong, Changwon Seo, Hyeongi Park, Donghak Oh, Jae-Eon Shim, Jaeyeong Lee, Taewoo Ha, Hyeon-Don Kim, Soojeong Baek, Bumki Min, Teun-Teun Kim
Publikováno v:
Nanophotonics.
Anisotropic materials with chirality or birefringence can be used to manipulate the polarization states of electromagnetic waves. However, the comparatively low anisotropy of natural materials hinders the miniaturization of optical components and dev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c609ed30a8594faca523b7933dde237
https://doi.org/10.1515/nanoph-2022-0812
https://doi.org/10.1515/nanoph-2022-0812
Publikováno v:
Nanophotonics. 11:2045-2055
A temporal boundary refers to a specific time at which the properties of an optical medium are abruptly changed. When light interacts with the temporal boundary, its spectral content can be redistributed due to the breaking of continuous time-transla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6cfe5f17a60a3a18c9f053ca4bfa3324
https://doi.org/10.1515/nanoph-2021-0667
https://doi.org/10.1515/nanoph-2021-0667
Autor:
Myeongjeong Lee, In Chung, Hyungseok Lee, Sunae So, Junsuk Rho, Sung-Pyo Cho, Hyunsung Park, Jae-Hwan Pee, Eunsil Lee, Jaeseok Son, Bumki Min, Tae Won Noh, Bangzhi Ge, Wooyoung Shim, Jong-Young Kim, Zhongqi Shi, Sejin Byun
Publikováno v:
Journal of the American Chemical Society. 143:20725-20734
Extraordinary properties of traditional hyperbolic metamaterials, not found in nature, arise from their man-made subwavelength structures causing unique light-matter interactions. However, their preparation requiring nanofabrication processes is high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::636c2e330e484441eec88901c3368519
https://doi.org/10.1021/jacs.1c08446
https://doi.org/10.1021/jacs.1c08446
Autor:
Jagang Park, Hyukjoon Cho, Seojoo Lee, Kyungmin Lee, Kanghee Lee, Hee Chul Park, Jung-Wan Ryu, Namkyoo Park, Sanggeun Jeon, Bumki Min
Publikováno v:
Science Advances. 8
Periodically driven systems are ubiquitously found in both classical and quantum regimes. In the field of photonics, these Floquet systems have begun to provide insight into how time periodicity can extend the concept of spatially periodic photonic c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::908888974f27289da5bb29415d508e3a
https://doi.org/10.1126/sciadv.abo6220
https://doi.org/10.1126/sciadv.abo6220
Publikováno v:
Metamaterials, Metadevices, and Metasystems 2022.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5d6afbce2eabb47ec59ac9804ea07f5
https://doi.org/10.1117/12.2631830
https://doi.org/10.1117/12.2631830
Autor:
Soojeong Baek, Sang Hyun Park, Donghak Oh, Kanghee Lee, Sangha Lee, Hosub Lim, Taewoo Ha, Hyun Sung Park, Shuang Zhang, Lan Yang, Bumki Min, Teun-Teun Kim
Non-Hermitian degeneracies, also known as exceptional points (EPs), have been the focus of much attention due to their singular eigenvalue surface structure. Nevertheless, as pertaining to a non-Hermitian metasurface platform, the reduction of an eig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::095661c1075efae623acc1b7d5aad0ee
https://doi.org/10.21203/rs.3.rs-1977059/v1
https://doi.org/10.21203/rs.3.rs-1977059/v1
Autor:
Junyong Seo, Bong Jae Lee, Mingeon Kim, Van Long Le, Jongin Choi, Bumki Min, Young Dong Kim, Yong Jai Cho, Byungsoo Kang
Publikováno v:
Journal of the Korean Physical Society. 76:889-894
The accidental Dirac cone of a photonic crystal allows the realization of a low loss dielectric metamaterial with simultaneous near-zero effective permittivity and permeability. The resulting zero refractive index allowed applications that require un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f6527a3436b1af9aa049c701ca69a62
https://doi.org/10.3938/jkps.76.889
https://doi.org/10.3938/jkps.76.889