Singular optics and topological photonics

M Soskin, SV Boriskina, Y Chong, MR Dennis… - Journal of …, 2016 - iopscience.iop.org
For centuries, singularities in wave fields have been a mainstay of interest in multiple areas
of physics, ranging from plasma physics, fluid dynamics and atmospheric physics to optics …

Plasmonic nanohole array sensors fabricated by template transfer with improved optical performance

P Jia, H Jiang, J Sabarinathan, J Yang - Nanotechnology, 2013 - iopscience.iop.org
Surface plasmon resonance sensors of the nanohole array type provide a promising
platform for label-free biosensing on surfaces. For their extensive use, an efficient fabrication …

Sensitive singular-phase optical detection without phase measurements with Tamm plasmons

SV Boriskina, Y Tsurimaki - Journal of Physics: Condensed …, 2018 - iopscience.iop.org
Spectrally-tailored interactions of light with material interfaces offer many exciting
applications in sensing, photo-detection, and optical energy conversion. In particular …

Highly-efficient and angle-independent zero-order half waveplate at broad visible wavelength based on Au nanofin array embedded in dielectric

M Ishii, K Iwami, N Umeda - Optics Express, 2016 - opg.optica.org
A Au nanofin array embedded in SiO_2 was designed and fabricated to achieve an
achromatic half waveplate with high transmittance at visible wavelengths. On the basis of the …

An Au nanofin array for high efficiency plasmonic optical retarders at visible wavelengths

M Ishii, K Iwami, N Umeda - Applied Physics Letters, 2015 - pubs.aip.org
An Au nanofin array was designed and fabricated for in a microscale optical retarder with
high transmittance at visible wavelengths. The array was designed on the basis of the theory …

Sub-picometer multi-wavelength detector based on highly sensitive nanomechanical resonator

E Maeda, R Kometani - Applied Physics Letters, 2017 - pubs.aip.org
The wavelength division multiplexing (WDM) method for near infrared (NIR) optical fiber
(1530–1565 nm) is the system that is wildly used for intercontinental communication. WDM …

Silicon-coated gold nanodiffraction grating structures as plasmonic absorbers for short-wavelength infrared light

T Tsubota, N Arai, A Harada, A Uesugi, K Sugano… - JOSA B, 2021 - opg.optica.org
As a plasmonic absorber for short-wavelength infrared hyperspectral imaging, a silicon-
coated gold nanodiffraction grating structure is proposed. This plasmonic absorber leads to …

Coupling of localized surface plasmons to U-shaped cavities for high-sensitivity and miniaturized detectors

YL Ho, Y Lee, E Maeda, JJ Delaunay - Optics Express, 2013 - opg.optica.org
We report numerical analysis of the coupling of localized surface plasmons to the modes of
U-shaped cavities. The coupling results in intense resonance for which the electric field is …

Light trapping in finite arrays of metallic U-shaped cavities for sensing with high figures of merit

YL Ho, Y Lee, JJ Delaunay - IEEE Photonics Technology …, 2014 - ieeexplore.ieee.org
We report conditions for light trapping in subwavelength metallic U-shaped cavities. Full and
partial light trapping exhibiting optical power flow vortices originate in coupling of surface …

High sensitivity refractive index sensing with strong light confinement in high-aspect-ratio U-cavity arrays

Y Lee, E Maeda, YL Ho, S Fujikawa… - Sensors and Actuators B …, 2014 - Elsevier
U-cavities made of gold high-aspect-ratio nano-fins are proposed as a sensitive refractive
index sensing element in the near-infrared region. The sensing mechanism is based on the …