نتایج جستجو برای: plasmon resonance

تعداد نتایج: 222845  

2012
M. Kang J. -J. Kim K.-H. Jeong

Localized surface plasmon resonance (LSPR) is strongly associated with inelastic scattering of biochemical molecules near metal nanostructures, i.e., surface enhanced Raman scattering (SERS). Systematically exploration of the relationship between surface-enhanced Raman spectroscopy (SERS) and the plasmon resonance wavelength has been an experimental limitation due to the lack of reliable and tu...

2010
Rahber Thariani Paul Yager

Surface plasmon resonance imaging and surface plasmon induced fluorescent are sensitive tools for surface analysis. However, existing instruments in this area have provided limited capability for concurrent detection, and may be large and expensive. We demonstrate a highly cost-effective system capable of concurrent surface plasmon resonance microscopy (SPRM) and surface plasmon resonance-enhan...

Journal: :iranian journal of medical physics 0
mohammad etrati khosroshahi laser and nano-biophotonics lab., biomaterial group, faculty of biomedical engineering, amirkabir university of technology, tehran, iran. laser, optics and photonics research center, tehran, iran.

introduction in this study, we describe the results of controlled synthesis and application of gold coated fe3o4/sio2 nano-shells combined with the optical property of gold for enhancement of selective photothermal interaction with cancerous cells based on the surface plasmon resonance (spr) phenomena. materials and methods magnetite nano-particles (mnps) were prepared by means of co-precipitat...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2006
Andrey K Sarychev Gennady Shvets Vladimir M Shalaev

It is demonstrated that metallic horseshoe-shaped (also referred to as u-shaped) nanostructures can exhibit a magnetic resonance in the optical spectral range. This magnetic plasmon resonance is distinct from the purely geometric LC resonance occurring in perfectly conducting split rings because the plasmonic nature of the metal plays the dominant role. Similarly to the electrical surface plasm...

Journal: :international journal of optics and photonics 0
jalil jafari no. 444, prof. yousef sobouti blvd. p. o. box 45195-1159 zanjan iran rahman nouroozi no. 444, prof. yousef sobouti blvd. p. o. box 45195-1159 zanjan iran

for a fiber optical surface plasmon resonance (spr) sensor a short part of its cladding should be removed to coat a thin layer of a metal. usually this is problematic when an optical fiber with small core diameter is used. in this paper, a new method using µliter droplet of the hf acid for short fiber optical taper fabrication is reported. using this method in a multi-mode optical fiber with th...

Journal: :iranian chemical communication 0
professor mohammad ali karimi department of chemistry, payame noor university, p.o. box 19395-4697, tehran, iran malihe alsadat mozaheb department of chemistry, payame noor university, p.o. box 19395-4697, tehran, iran abdolhamid hatefi-mehrjardi department of chemistry, payame noor university, p.o. box 19395-4697, tehran, iran hossein tavallali department of chemistry, payame noor university, p.o. box 19395-4697, tehran, iran abdol mohammad attaran department of chemistry, payame noor university, p.o. box 19395-4697, tehran, iran

in this paper, multivariate calibration methods of partial least squares (pls) and principle component regression (pcr) were investigated in simultaneously determination of hydrazine (hz) and acetylhydrazine (ahz). the aforementioned methods are based on formation of the silver nanoparticles (agnps) from the reaction of hz and ahz with ag+ ions as oxidizing agent in the presence of citrate ions...

Journal: :Applied spectroscopy 2015
Xueli Tian Hong Guo Ketan H Bhatt Song Q Zhao Yi Wang Junpeng Guo

We experimentally demonstrate a surface plasmon resonance spectrometer sensor by using an e-beam-patterned super-period gold nanodisc grating on a glass substrate. The super-period gold nanodisc grating has a small subwavelength period and a large diffraction grating period. The small subwavelength period enhances localized surface plasmon resonance, and the large diffraction grating period dif...

Journal: :Physical Review E 2006

2014
Feifei Wei Dylan Lu Ryan Aguinaldo Yicong Ma Sunil K. Sinha Zhaowei Liu

Articles you may be interested in A localized surface plasmon resonance-based optical fiber sensor with sub-wavelength apertures Appl. Surface enhanced Raman scattering and localized surface plasmon resonance of nanoscale ultrathin films prepared by atomic layer deposition Appl. Systematic investigation of localized surface plasmon resonance of long-range ordered Au nanodisk arrays

Journal: :Nanoscale 2011
Lei Zhao Tian Ming Huanjun Chen Yao Liang Jianfang Wang

Both the excitation and emission processes of a fluorescent molecule positioned near a noble metal nanocrystal can interact strongly with the localized surface plasmon resonance of the metal nanocrystal. While the effects of this plasmon-fluorophore interaction on the intensity, polarization, and direction of the fluorescence emission have been intensively investigated, the plasmonic effect on ...

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