Optical fibre-tip probes for SERS: numerical study for design considerations

T Hutter, SR Elliott, S Mahajan - Optics Express, 2018 - opg.optica.org
Enhancement of sub-wavelength optical fields using sub-micron plasmonic probes has
found many applications in chemical, material, biological and medical sciences. The …

Template-stripped nanoaperture tweezer integrated with optical fiber

JM Ehtaiba, R Gordon - Optics Express, 2018 - opg.optica.org
We demonstrate an optical trapping technique that integrates the light guiding of an optical
fiber with the field localization of a nanoaperture in a gold film. A key innovation of our …

Extremely large near-field enhancements in the vicinity of plasmonic nanoantennas on top of bull's eye structures exhibiting the extraordinary transmission of light

RR Ghosh, A Dhawan - Osa Continuum, 2021 - opg.optica.org
In this paper, we demonstrate that the optical electromagnetic fields in the vicinity of
plasmonic nanoantennas are substantially enhanced on combining the plasmonic …

Design and optimization of tapered optical fiber probes for SERS utilizing FDTD method

C Gu, D Meng, Z Zhao, X Yu - Plasmonics, 2022 - Springer
In this work, we report a strategy of Ag nanoparticle (Ag NP)-coated tapered optical fiber
probes by finite difference time domain (FDTD) simulations. Investigation shows that the …

Round-tower plasmonic optical microfiber tip for nanofocusing with a high field enhancement

L Zhu, Y Yin, L Dai, Y Hu, J Nan, Z Zheng, C Cai… - Optics …, 2019 - Elsevier
A round-tower (RT) plasmonic tip based on an optical microfiber for nanofocusing is
proposed. Its operation principle is systematically analyzed by theoretical methods. Four …

Design and characterization of resonant devices for optical applications

MF Kashif - 2022 - tesidottorato.depositolegale.it
Periodic structures have attracted huge research interest over the past many years due to
their interesting electromagnetic properties. There are lots of useful applications in the fields …

Optical plasmon nanostrip probe as an effective ultrashort pulse delivery system

YM Morozov, AS Lapchuk, IV Gorbov, SL Yao… - Optics Express, 2019 - opg.optica.org
In this paper, we analyze the ultrafast temporal and spectral responses of optical fields in
tapered and metalized optical fibers (MOFs) and optical plasmon nanostrip probes (NPs) …

Plasmonic Nanostructures on Tips of Tapered Optical Fibers for Large EM Enhancement

A Dhawan, PB Savaliva… - 2018 IEEE 18th …, 2018 - ieeexplore.ieee.org
In this paper, we employ finite difference time domain (FDTD) simulations to show that
plasmonic nanoantenna structures present on tips of tapered optical fibers have significantly …