Double-sided semitransparent titania photoelectrode with enhanced light harvesting

DS Kouao, J Hanuš, O Kylián, R Simerova… - … and Sustainable Energy …, 2024 - Elsevier
In this work, unique semitransparent electrodes were prepared by the anodization of
titanium layers (540 nm thick) initially deposited on the both sides of glass substrates …

Sub-wavelength annular-slit-assisted superoscillatory lens for longitudinally-polarized super-resolution focusing

H Kim, ETF Rogers - Scientific Reports, 2020 - nature.com
A binary metallic superoscillatory lens assisted with annular subwavelength slits is
proposed, which generates a longitudinally-polarized super-resolution focal point. The …

Optical phase properties of small numbers of nanoslits and an application for higher-efficiency fresnel zone plates

H Kim, SY Lee - Current Optics and Photonics, 2019 - opg.optica.org
We have studied the behavior of light in the intermediate regime between a single nanoslit
and an infinite nanoslit array. We first calculated the optical characteristics of a small number …

Numerical studies on antiresonant waveguide assisted metasurface and its application

H Kim - IEEE Access, 2022 - ieeexplore.ieee.org
The growth of the nanotechnology and intense studies on subwavelength nanophotonics
has facilitated research in the field of metamaterials and metasurfaces. Optical waveguides …

Nearly total optical transmission of linearly polarized light through transparent electrode composed of GaSb monolithic high-contrast grating integrated with gold

LYM Tobing, M Wasiak, DH Zhang, W Fan… - …, 2021 - degruyter.com
Achieving high transmission of light through a highly conductive structure implemented on a
semiconductor remains a challenge in optoelectronics as the transmission is inevitably …

Broadband phase-change metagrating design for efficient active reflection steering

SJ Kim - Current Optics and Photonics, 2021 - opg.optica.org
In this paper, I introduce a novel design method of a high performance nanophotonic beam
deflector providing broadband operation, large active tunability, and signal efficiency …

Numerical demonstration of low-reflective wire grid polarizers with a patterned Fe2O3 absorptive layer

Z Zhao, T Ma, H Deng, SA Moosavi, H Zhang… - Applied Optics, 2022 - opg.optica.org
Absorptive polarizers are pivotal components for realizing a low ambient reflection in liquid
crystal displays (LCDs) and organic light-emitting diodes (OLEDs). Different types of …

Numerical analysis of protection method of metallic sub-wavelength concentric arrays for radially polarized light selection and its applications

H Kim - Sensors, 2021 - mdpi.com
Radially polarized light has various advantages on sensing, thanks for its symmetric field
distribution. To select radial component, metallic sub-wavelength concentric arrays are …

Compact and efficient wire grid reflecting polarizersat 121.6 nm

Z Zhao, T Ma, J Xiao, Z Xu, B Zhang, S Pan - Physica Scripta, 2022 - iopscience.iop.org
In this work, two structures of wire grid reflecting polarizers have been proposed and
optimized through simulation at the target wavelength of 121.6 nm (H Lyman-α), which aims …

Numerical study on enhanced line focusing via buried metallic nanowire assisted binary plate

H Kim - Nanomaterials, 2021 - mdpi.com
Line focusing, which collects light into a line rather than a single point, has an advantage on
variable fields such as machining and imaging. The 1-dimensional metallic zone plate is …