Optical Waveguide Fingerprint Recognition Device with Two‐Stage Dual‐Function Gratings
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Materials Interfaces"
DOI: 10.1002/admi.202202361
Abstract: In the under‐screen fingerprint recognition of smart cell phones, the tiny image signals are easily deteriorated by the protective membranes of screens. To solve this issue, an optical waveguide comprising two stage dual‐function gratings is… read more here.
Keywords: fingerprint recognition; optical waveguide; stage; two stage ... See more keywords
Morphology‐Dependent Luminescence and Optical Waveguide Property in Large‐Size Organic Charge Transfer Cocrystals with Anisotropic Spatial Distribution of Transition Dipole Moment
Sign Up to like & getrecommendations! Published in 2019 at "Advanced Optical Materials"
DOI: 10.1002/adom.201901280
Abstract: Organic cocrystals exhibiting active optical waveguide behaviors are strongly related to the total internal reflection, molecule stacking modes, and the spatial distribution of transition dipole moment (µ) in crystals. However, organic charge transfer (CT) cocrystals… read more here.
Keywords: spatial distribution; anisotropic spatial; distribution transition; waveguide ... See more keywords
Planar optical waveguide for refractive index determining with high sensitivity and dual-band characteristic for Nano-sensor application
Sign Up to like & getrecommendations! Published in 2019 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-019-1905-x
Abstract: In this paper, we develop an optical waveguide based on metal–insulator-metal as a refractive index sensor with dual-band feature and a high figure of merit (FOM) and sensitivity. In this model, we utilize a Z-shape… read more here.
Keywords: dual band; application; optical waveguide; refractive index ... See more keywords
Narrow-core hollow optical waveguide with nanostructured SOI as ultra-low loss platform for efficient photodetection
Sign Up to like & getrecommendations! Published in 2017 at "Photonic Network Communications"
DOI: 10.1007/s11107-017-0687-y
Abstract: A nanostructured hollow optical waveguide based on high-index contrast grating (HCG) embedded SOI is proposed. An ultra-low propagation loss of 1.22 dB/m even at narrow, 1-$$\upmu $$μm thick, air-core is reported. A high-performance photodetection is realized… read more here.
Keywords: hollow optical; ultra low; photodetection; waveguide ... See more keywords
Sensitivity enhancement for mycotoxin determination by optical waveguide lightmode spectroscopy using gold nanoparticles of different size and origin.
Sign Up to like & getrecommendations! Published in 2018 at "Food chemistry"
DOI: 10.1016/j.foodchem.2018.04.089
Abstract: Mycotoxins, present in a wide range of food and feed commodities, are toxic secondary metabolites produced by a number of different fungi. Certain mycotoxins do not readily degrade at high temperatures, therefore are resistant to… read more here.
Keywords: gold nanoparticles; waveguide lightmode; lightmode spectroscopy; optical waveguide ... See more keywords
Efficient topology optimization of optical waveguide using finite element method based on slowly varying envelope approximation
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2020.165951
Abstract: Abstract We propose a novel finite element method (FEM) for efficient optical waveguide analysis to improve the computational efficiency in inverse design of optical waveguide devices. In our formulation, applying slowly varying envelope approximation (SVEA)… read more here.
Keywords: slowly varying; envelope; method; topology ... See more keywords
The influence of PT-symmetric degree on extraordinary optical properties of one-dimensional periodic optical waveguide networks
Sign Up to like & getrecommendations! Published in 2020 at "Optics Communications"
DOI: 10.1016/j.optcom.2019.124945
Abstract: Abstract In this paper, we design two kinds of one-dimensional (1D) equal-length two-segment-connected periodic triangular optical waveguide networks with different PT-symmetric degrees, one-dimensional PT-symmetric triangular optical waveguide network (1D PT-TOWN) and one-dimensional non-PT-symmetric triangular optical… read more here.
Keywords: symmetric degree; optical waveguide; one dimensional; waveguide networks ... See more keywords
5, 10, 15, 20-tetrakis-(4-methoxyphenyl) porphyrin film/K+ ion-exchanged optical waveguide gas sensor
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2020.106260
Abstract: Abstract Optical waveguide (OWG) sensors are widely used in gas detection, and sensitive materials are the key factors affecting sensor performance. Herein, we report on a 5,10,15,20-tetrakis-(4-methoxyphenyl) porphyrin (TMP) deposited optical wave guide (OWG) sensor.… read more here.
Keywords: sensor; gas; optical waveguide; film ... See more keywords
Graphene oxide-based optical waveguide for moisture sensing in transformer oil
Sign Up to like & getrecommendations! Published in 2019 at "Photonics and Nanostructures - Fundamentals and Applications"
DOI: 10.1016/j.photonics.2019.100727
Abstract: Abstract We report on moisture detection in transformer oil based on an optical waveguide fabricated using graphene oxide (GO). The SU-8 polymer channel waveguide was coated by GO film, using a drop-casting technique. Here, for… read more here.
Keywords: water; optical waveguide; transformer oil; oil ... See more keywords
The formation and characterization of optical waveguide in Nd:YLF crystal by 4.5-MeV Si ion implantation
Sign Up to like & getrecommendations! Published in 2019 at "Physica B: Condensed Matter"
DOI: 10.1016/j.physb.2018.10.017
Abstract: Abstract The planar waveguides have been fabricated in Nd:YLF crystals by Si implantation. The guiding properties of Si-implanted waveguide are evaluated by the prism-coupling technique and reflectivity calculation method (RCM), exhibiting good confinement and monomode… read more here.
Keywords: ylf; optical waveguide; formation characterization; waveguide ylf ... See more keywords
Second-Harmonic Enhancement from a Nonlinear Plasmonic Metasurface Coupled to an Optical Waveguide
Sign Up to like & getrecommendations! Published in 2022 at "Nano Letters"
DOI: 10.1021/acs.nanolett.1c04584
Abstract: Metasurfaces are commonly constructed from two-dimensional arrangements of nanoresonators. Coherent coupling of the nanoresonators through extended photonic modes of the metasurface results in a modified collective optical response, and enhances light–matter interactions. Here we experimentally… read more here.
Keywords: second harmonic; nonlinear plasmonic; enhancement nonlinear; harmonic enhancement ... See more keywords