Results 11 to 20 of about 93,620 (314)

Enhanced Raman Scattering by Molecular Nanoaggregates

open access: yesNanomaterials and Nanotechnology, 2014
The formation of a molecular aggregate in a confined, nanodimensioned region of space leads to what might be termed a ‘molecular nanoaggregate’. The present review deals with a theoretical formulation termed ‘aggregation-enhanced Raman scattering’ (AERS),
Daniel L. Akins
doaj   +3 more sources

Optical-phonon resonances with saddle-point excitons in twisted-bilayer graphene [PDF]

open access: yes, 2014
Twisted-bilayer graphene (tBLG) exhibits van Hove singularities in the density of states that can be tuned by changing the twisting angle θ. A θ-defined tBLG has been produced and characterized with optical reflectivity and resonance Raman scattering ...
Kasperczyk, Mark   +16 more
core   +1 more source

Nanomaterials for Surface Enhanced Raman Spectroscopy

open access: yesNanomaterials, 2023
For many decades, Raman spectroscopy has been disregarded as an ineffective analytical tool because of the very low efficiency of “normal” Raman scattering (the typical cross-section for Raman scattering is about 11 and 8 orders of magnitude smaller than
Andrzej Kudelski
doaj   +1 more source

Lowering backward Raman and Brillouin scattering in waveguide Raman wavelength converters

open access: yesJournal of the European Optical Society-Rapid Publications, 2017
Background Liquid filled hollow core fiber Raman wavelength converters are devices enabling to red-shift the wavelength of laser beams delivered by either fixed wavelength or tunable lasers. Most of the reported converters operate in a pulsed regime with
Min Châu Phan Huy   +7 more
doaj   +1 more source

A Review of Raman-Based Technologies for Bacterial Identification and Antimicrobial Susceptibility Testing

open access: yesPhotonics, 2022
Antimicrobial resistance (AMR) is a global medical threat that seriously endangers human health. Rapid bacterial identification and antimicrobial susceptibility testing (AST) are key interventions to combat the spread and emergence of AMR.
Weifeng Zhang   +3 more
doaj   +1 more source

Strategies and Progress of Raman Technologies for Cellular Uptake Analysis of the Drug Delivery Systems

open access: yesInternational Journal of Nanomedicine, 2023
Yajuan Liu,1 Mei Li,2 Haisha Liu,2 Chao Kang,2 Xiyong Yu1 1Key Laboratory of Molecular Target & Clinical Pharmacology, and the NMPA & State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences & the Fifth Affiliated Hospital ...
Liu Y, Li M, Liu H, Kang C, Yu X
doaj  

Optimization of electron Raman scattering in double rectangular quantum wells [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2013
In this work, by using the particle swarm optimization the electron Raman scattering for square double quantum wells is optimized. For this purpose, by combining the particle swarm algorithm together with the numerical solution procedures for equations ...
A. Keshavarz, N. Zamani
doaj   +1 more source

Flexible and stable optical parametric oscillator based laser system for coherent anti-Stokes Raman scattering microscopy

open access: yes, 2010
The characteristics of a stable and flexible laser system based on a synchronously pumped optical parametric oscillator (OPO) is presented. This OPO can offer very stable operation with both approximately 1 ps and approximately 300 fs outputs over a ...
Parsons, Maddy; id_orcid   +3 more
core   +1 more source

Real Time Dual-Channel Multiplex SERS Ultradetection [PDF]

open access: yes, 2013
Surface-enhanced Raman scattering (SERS) can be combined with microfluidics for rapid multiplex analyte screening. Through combination of the high intensity and complex signals provided by SERS with the flow characteristics of microfluidic channels, we ...
Abalde-Cela, S.   +7 more
core   +1 more source

Surface-enhanced Raman scattering microfluidic sensor [PDF]

open access: yes, 2013
Surface-enhanced Raman scattering (SERS) is a highly sensitive detection technique used to provide information about chemical and biological trace analytes. The confocal Raman microscope makes it possible to monitor small samples in a narrow microfluidic
Li, Bo-wei   +3 more
core   +1 more source

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