2 edition of Optical remote sensing with intensity referenced signals and surface plasmons. found in the catalog.
Optical remote sensing with intensity referenced signals and surface plasmons.
Abdul Rahim Talpur
MSc thesis, Physics.
Surface plasmon resonance biosensors. The physical phenomenon of SPR was first observed in This observation of an esoteric optical phenomenon evolved through decades into a full understanding of surface plasmon physics and in SPR was first successfully used to construct an SPR-based sensor to detect biomolecular interactions .The . The surface plasmon resonance (SPR) based sensing, which utilizes the interaction of light with free electrons at a metal-dielectric interface  and thus is very sensitive to a large variety of.
In recent times, photon energy has been effectively focused and concentrated on the apex of a tapered metallic probe by exciting the waveguide of the surface plasmon polaritons [4,5,6].Moreover, the coupling of the waveguide mode of a fiber tip and surface plasmons propagating on the external surface of the metal coating on the fiber, leads to strong field Cited by: 5. Surface plasmon resonance (SPR) sensor has been studied for high sensitivity optical biosensor as a single molecule detection, virus detection, DNA sequencing etc. SPR sensor requires an ultra-small signal detection system that measures very small intensity variation of reflected light along with the change of a refractive index near the sensor : Chang-In Park, Kwang-Jin Kim, Chang-gun Kim, Nam-Pyo Hong, Young-Wan Choi.
The cost of launching satellites is getting lower and lower due to the reusability of rockets (NASA, ) and using single missions to launch multiple satellites (up to 37, Russia, ). In addition, low-orbit satellite constellations have been employed in recent years. These trends indicate that satellite remote sensing has a promising future in acquiring high-resolution data with a low Cited by: 1. Remote SERS has been introduced into plasmonic catalysis in which propagating SPPs behaved as carriers for catalysis and sensing. By using remote SERS technology, the plasmon catalyzed reaction of PATP to DMAB was demonstrated at the junction at the nanowire and nanoparticle system. 53 As shown in Fig the SEM image and optical Cited by:
empirical assessment of Canadian highway traffic laws.
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It is well known that optical fiber sensors have attracted the attention of scientific community due to its intrinsic advantages, such as lightweight, small size, portability, remote sensing, immunity to electromagnetic interferences and the possibility of multiplexing several signals.
This field has shown a dramatic growth thanks to the creation of sensitive thin films onto diverse optical Cited by: 1. Optical remote sensing spans the range of electromagnetic wavelengths from the visible to the thermal infrared (IR) making images from both reflected and emitted radiation from the Earth's surface and overlying atmosphere.
The various types of surface and atmospheric targets that both reflect and emit radiation are summarized here in Fig. Note that the arrows going to. Nanophotonics with Surface Plasmons A volume in Advances in Nano-Optics and Nano-Photonics. Book • (super-RENS) disk differs from the other disks, and indicates extremely high signal intensity and small resolution.
Although the detailed mechanism has not yet been clearly understood, the chapter discusses that a simple aperture model.
Dual-mode surface-plasmon resonance (SPR) sensors use both long- and short- range surface plasmon waves to differentiate surface binding interactions from interfering bulk effects. We have optimized the design of these sensors for minimum surface limit of detection (LOD) using a Cramer-Rao lower bound for spectral shift estimation.
Despite trade-offs between resonance. Localized Surface Plasmon Resonance for Optical Fiber-Sensing Applications Chapter (PDF Available) June with Reads How we measure 'reads'. A new surface plasmon resonance (SPR) sensing probe is presented. The probe is based on retro-reflection, consisting of a stable, one-piece substrate that is simple to construct.
A type of hollow gold nanoparticle (HGNP)-modified fiber optic long-range surface plasmon resonance (LRSPR) sensor with sensing self-reference is proposed and demonstrated.
HGNPs have a stronger plasmonic field compared to solid GNPs because of the coupling between the inner and outer walls of HGNPs. The intense near-field electronic coupling between long-range surface plasmon Author: Jian-Ying Jing, Qi Zhu, Zhe-Xin Dai, Si-Yuan Li, Qi Wang, Wan-Ming Zhao.
We demonstrate a fiber optic surface plasmon resonance (SPR) biosensor based on smart phone platforms. The light-weight optical components and sensing element are connected by optical fibers on a Cited by: Self-Referencing in Optical-Fiber Surface Plasmon Resonance Sensors Article in IEEE Photonics Technology Letters 19(24) - January.
coupler-based surface plasmon sensor exhibit lower sensitivities than prism-coupler ones , and devices based on extraordinary transmission are usually affected by a low signal-to-noise ratio since the transmitted intensity is usually of about 5% .Cited by: Furthermore, plasmons have been extensively used for amplifying a Raman signal in a surface-enhanced Raman scattering sensor.
This paper presents a review of recent research progress in plasmon-enhanced optical sensing, giving emphasis on the physical basis of plasmon-enhanced sensors and how these principles guide the design of by: The potential of surface plasmon resonance (SPR) for characterization of thin films and monitoring processes at metal interfaces was recognized in the late seventies.
In the use of SPR for gas detection and biosensing was demonstrated by Nylander and Liedberg.Since then SPR sensing has been receiving continuously growing attention from scientific by: Furthermore, plasmons have been extensively used for amplifying a Raman signal in a surface-enhanced Raman scattering sensor.
This paper presents a review of recent research progress in plasmon-enhanced optical sensing, giving an emphasis on the physical basis of plasmon-enhanced sensors and how these principles guide the design of by: Surface plasmon resonance sensor based on resonant interaction between a guided mode of a single-mode optical fiber and a surface plasmon wave supported by a thin metal overlayer is presented.
Two modes of operation of the sensor based on the measurement of changes in the fiber mode attenuation and on the measurement of changes in the Cited by: In this paper, we designed a unified theoretical MOSPR [10,11] refractive index sensing design with prism/TiN/SiO 2 /YIG/CeYIG/Au/liquid new structure [12,13] based on the classification prism coupling magneto-optical prism waveguide coupling system is studied.
The physical mechanism of magneto-optical surface plasmon resonance in magneto-optical waveguide Author: Zhonghao Zheng, Jinhu Wang, Nengxi Li, Chaoyang Li, Jun Qin, Tingting Tang, Tingting Tang, Lei Wang.
Remotely excited surface-enhanced Raman scattering (SERS) produced by means of a propagating surface plasmon in Ag or Au nanowires has been experimentally studied. 19,20,21 Compared to local SERS Cited by: In this section, we analyze the influence of two values of Plastic Optical Fiber core diameter (D) on the performance of a sensor based on Surface Plasmon Resonance in a POF, where the sensing region length is fixed and a photoresist buffer layer is placed between the fiber core and the gold film (see figure 2).Cited by: 5.
A novel optical biosensor based on simultaneous multiwave length detection surface plasmon resonance (SPR) has been developed for immunosensing.
The sensor is designed on the basis of fixing angle of incidence and measuring the reflected intensities of light in the wavelength range of – nm. The SPR spectra are shown in terms of reflected light intensity verus Cited by: Photoacoustic based surface plasmon resonance spectroscopy The photoacoustic set-up to measure resonance angle of SP excitation in prism coupling technique is shown in the following figure.[ 38 ] The light from the source [DPSSL, SUWTECH LDC] was coupled to an optical fibre and guided to an assembly consisting of a polarizer and an optical Cited by: 4.
We used surface-enhanced Raman scattering (SERS) for the quantitative and sensitive detection of chloramphenicol (CAP). Using 30 nm colloidal Au nanoparticles (NPs), a low detection limit for CAP of 10 −8 M was obtained. The characteristic Raman peak of CAP centered at cm −1 was used for the rapid quantitative detection of CAP in three different types of CAP eye drops.
In recent years, various reports related to sensing application research have suggested that combining the synergistic impacts of optical, electrical or magnetic properties in a single technique can lead to a new multitasking platform.
Owing to their unique features of the magnetic moment, biocompatibility, ease of surface modification, chemical stability, high surface area, Cited by: 1.In silica optical fiber Surface Plasmon Resonance (SPR)-based sensors, an increase in fiber core diameter produces a corresponding increase in the sensitivity and Signal to Noise Ratio (SNR).
In Plastic Optical Fiber (POF) realized in PMMA there are different influences of design parameters on the performance, as both sensitivity and SNR are by: Rajiv Kohli, in Developments in Surface Contamination and Cleaning: Detection, Characterization, and Analysis of Contaminants, Selective Light Transmission Due to Surface Plasmons.
Surface plasmons can also serve another purpose to selectively transmit light through a reflective medium such as a metal. Metals in the microwave domain are .