Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Hwang Yongsop"'
Publikováno v:
Nanophotonics, Vol 11, Iss 21, Pp 4697-4704 (2022)
We demonstrated silicon-on-insulator (SOI)-based high-efficiency metalenses at telecommunication wavelengths that are integrable with a standard 220 nm-thick silicon photonic chip. A negative electron-beam resist (ma-N) was placed on top of the Si na
Externí odkaz:
https://doaj.org/article/3e6ae01b20524d5cb7f09b0f73edc1ef
Lack of low phonon energy glass waveguides delays the progress of integrated photonics in the mid-infrared wavelength. This perspective provides insights on the history of waveguide production in the past and what to expect in the near future.
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Externí odkaz:
http://arxiv.org/abs/2408.12050
Publikováno v:
Journal of Optics 26, 055003 (2024)
We generalize the concept of optical scattering matrix ($S$-matrix) to characterize harmonic generation and frequency mixing in planar metasurfaces in the limit of undepleted pump approximation. We show that the symmetry properties of such nonlinear
Externí odkaz:
http://arxiv.org/abs/2311.03686
Publikováno v:
Phys. Rev. Research 3, 022025 (2021)
The presence of topological 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 counterpar
Externí odkaz:
http://arxiv.org/abs/2012.14760
Akademický článek
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Growing interest in devices based on layered van der Waals (vdW) materials is motivating the development of new nanofabrication methods. Hexagonal boron nitride (hBN) is one of the most promising materials for studies of quantum photonics and polarit
Externí odkaz:
http://arxiv.org/abs/1809.07561
Publikováno v:
ACS Photonics 5, 4538 (2018)
The effects of Fano resonance on the optical chirality of planar plasmonic nanodevices in the visible wavelength range are experimentally observed and theoretically explained. The nanodevice consists of a nanodisk at the center with six gold nanorods
Externí odkaz:
http://arxiv.org/abs/1802.03106
Autor:
Hwang, Yongsop, Hopkins, Ben, Wang, Dapeng, Mitchell, Arnan, Davis, Timothy J., Lin, Jiao, Yuan, Xiao-Cong
Dark-field illumination is shown to make planar chiral nanoparticle arrangements exhibit circular dichroism in extinction analogous to true chiral scatterers. Circular dichrosim is experimentally observed at the maximum scattering of single oligomers
Externí odkaz:
http://arxiv.org/abs/1706.05792
We consider periodic arrangements of metal nanostructures and study the effect of periodicity on the localised surface plasmon resonance of the structures within an electrostatic eigenmode approximation. We show that within this limit, the collective
Externí odkaz:
http://arxiv.org/abs/1705.10428
Akademický článek
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