Results 41 to 50 of about 89,955 (290)
Graphene oxide-coated Long Period Grating-based fibre optic sensor for relative humidity and external refractive index [PDF]
, 2017 IEEE Graphene oxide is a very attractive material for refractive index and humidity sensing due to its unique two-dimensional structure, which results in faster response times and improved sensitivity over alternative materials.
Dissanayake, K. P. W. +4 more
core +1 more source
Refractive Index Sensing by Using Mechanically Induced Long-Period Grating
IEEE Photonics Journal, 2012 In this paper, a refractive index sensor using a mechanically induced long-period grating is proposed and experimentally demonstrated. The sensing element is based on a composite optical waveguide, which is made of a single-mode fiber, a Teflon-cannula ...
Xiaojun Zhou +3 more
doaj +1 more source
Integrated collinear refractive index sensor with Ge PIN photodiodes
, 2018 Refractive index sensing is a highly sensitive and label-free detection method for molecular binding events. Commercial implementations of biosensing concepts based on plasmon resonances typically require significant external instrumentation such as ...
Augel, Lion +6 more
core +2 more sources
Sensitivity enhancement in evanescent optical waveguidesensors [PDF]
, 2000 It is shown, that the sensitivity of the effective refractive index on the cladding index in evanescent optical waveguide sensors, can be larger than unity.
Hoekstra, H.J.W.M. +3 more
core +2 more sources
Beilstein Journal of Nanotechnology, 2016 In this paper we report the design and experimental realisation of a novel refractive index sensor based on coupling between three nanoscale stripe waveguides. The sensor is highly compact and designed to operate at a single wavelength.
Chamanei Perera +5 more
doaj +1 more source
Nanofluidic Refractive-Index Sensors Formed by Nanocavity Resonators in Metals without Plasmons
Sensors, 2011 Nanocavity resonators in metals acting as nanofluidic refractive-index sensors were analyzed theoretically. With the illumination of transverse electric polarized light, the proposed refractive index sensor structure acts as a pure electromagnetic ...
Shih-Pin Tsai +3 more
doaj +1 more source
High-sensitivity plasmonic refractive index sensing using graphene
, 2017 We theoretically demonstrate a high-sensitivity, graphene-plasmon based refractive index sensor working in the mid-infrared at room temperature. The bulk figure of merit of our sensor reaches values above $10$, but the key aspect of our proposed ...
Fogelström, Mikael +4 more
core +1 more source
Designing a Biosensor Using a Photonic Quasi-Crystal Fiber with Fan-shaped Analyte Channel [PDF]
, 2017 Postprin
Aphale, Sumeet S. +5 more
core +1 more source
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
A Novel High Sensitivity Refractive Index Sensor Based on Multi-Core Micro/Nano Fiber
Photonic Sensors, 2019 A refractive index sensor based on a multi-core micro/nano fiber is proposed for low refractive index solutions. At first, the mode field distribution of the tapered multi-core fiber is analyzed with the finite element model (FEM).
Yuefeng Qi +5 more
doaj +1 more source