Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Sang Soon Oh"'
Publikováno v:
Physical Review Research, Vol 6, Iss 4, p L042013 (2024)
Optical bistability and oscillating phases exist in a Sagnac interferometer and a single ring resonator made of a χ^{(3)} nonlinear medium where the refractive indices are modulated by the light intensity due to the Kerr nonlinearity. An array of co
Externí odkaz:
https://doaj.org/article/dfb84af252ab4040962e3e77074cd74d
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract Surface potential in a topological matter could unprecedentedly localize the waves. However, this surface potential is yet to be exploited in topological photonic systems. Here, we demonstrate that photonic surface states can be induced and
Externí odkaz:
https://doaj.org/article/9e0e6bde23fb40f4ba22a2e08271f86c
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-7 (2023)
Abstract Identifying phases and analyzing the stability of dynamic states are ubiquitous and important problems which appear in various physical systems. Nonetheless, drawing a phase diagram in high-dimensional and large parameter spaces has remained
Externí odkaz:
https://doaj.org/article/38f01e69275542d9b120b7691313ae92
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract The realization of topological edge states (TESs) in photonic systems has provided unprecedented opportunities for manipulating light in novel manners. The Su–Schrieffer–Heeger (SSH) model has recently gained significant attention and ha
Externí odkaz:
https://doaj.org/article/4747d8c8053645abbdfcba40c4ca791b
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p L022025 (2021)
The presence of edge modes at the interface of two perturbed honeycomb photonic crystals with C_{6} symmetry is often attributed to the different signs of Berry curvature at the K and K^{′} valleys. In contrast to the electronic counterpart, the Ch
Externí odkaz:
https://doaj.org/article/6841c7d47f1e48b5aaea564ac627093c
Autor:
Stephan Wong, Sang Soon Oh
Publikováno v:
Physical Review Research, Vol 4, Iss 1, p 019001 (2022)
Externí odkaz:
https://doaj.org/article/cebebf11fc474a14aed033c56b06cd6d
Autor:
Haedong Park, Sang Soon Oh
Publikováno v:
New Journal of Physics, Vol 24, Iss 5, p 053042 (2022)
The topological nature of nodal lines in three-band systems can be described by non-abelian topological charges called quaternion numbers. Due to the gauge freedom of the eigenstates, the sign of quaternion numbers can be flipped by performing a gaug
Externí odkaz:
https://doaj.org/article/8eacd9f3c5b246108023b67371d13c08
Autor:
Stephan Wong, Sang Soon Oh
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033042 (2021)
Topological edge modes, which are robust against disorders, have been used to enhance the spatial stability of lasers. Recently, it was revealed that topological lasers can be further stabilized using a topological phase in non-Hermitian photonic top
Externí odkaz:
https://doaj.org/article/6bde5590662b45f3bedb73bd2ef75ba8
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 012011 (2020)
Photonic topological insulators are a promising photonic platform due to the possibility of unidirectional edge states with insensitivity to bending, fabrication imperfections, or environmental fluctuation. Here we demonstrate highly efficient unidir
Externí odkaz:
https://doaj.org/article/8bad85b587a840c0889a92256bed1e12
Publikováno v:
New Journal of Physics, Vol 14, Iss 8, p 083032 (2012)
Metallic gyroid metamaterials are formed by a combination of nanoplasmonic helices leading to unique and complex optical characteristics. To unravel this inherent complexity we set up an analytic tri-helical metamaterial model that reveals the underl
Externí odkaz:
https://doaj.org/article/cb2ba5e9945540708c742712fc56200a