Results 31 to 40 of about 48,924 (291)

Lab-on-a-chip Raman sensors outperforming Raman microscopes [PDF]

open access: yes, 2016
We demonstrate that the signal-to-noise ratio and signal collection efficiency in evanescent waveguide-based Raman spectroscopy exceeds that in Raman microscopes.
Baets, Roel   +6 more
core   +1 more source

Site Distribution in Resin Beads as Determined by Confocal Raman Spectroscopy [PDF]

open access: yesChemistry – A European Journal, 2001
Scanning confocal Raman spectroscopy was used to study the distribution of reactive sites within a resin bead used for solid-phase synthesis. The distribution of NH2 groups in aminomethylated polystyrene resin (APS) was determined by doping with varying amounts of 4-cyanobenzoic acid.
Kress, Jürgen   +6 more
openaire   +2 more sources

Machine Learning Assisted Handheld Confocal Raman Micro-Spectroscopy for Identification of Clinically Relevant Atopic Eczema Biomarkers

open access: yesSensors, 2022
Atopic dermatitis (AD) is a common chronic inflammatory skin dermatosis condition due to skin barrier dysfunction that causes itchy, red, swollen, and cracked skin.
Kapil Dev   +8 more
doaj   +1 more source

Silicon-nitride waveguides for on-chip Raman spectroscopy [PDF]

open access: yes, 2014
The evanescent tail of the guided modes can efficiently excite Raman active molecules located in the cladding of a waveguide. Similarly, a significant fraction of the total emitted Stokes power is evanescently coupled to the same mode.
Baets, Roel   +5 more
core   +1 more source

Confocal laser scanning microscope, raman microscopy and western blotting to evaluate inflammatory response after myocardial infarction [PDF]

open access: yes, 2015
Cardiac muscle necrosis is associated with inflammatory cascade that clears the infarct from dead cells and matrix debris, and then replaces the damaged tissue with scar, through three overlapping phases: the inflammatory phase, the proliferative phase
Cantatore, S   +6 more
core   +1 more source

Cavity-enhanced Raman Microscopy of Individual Carbon Nanotubes [PDF]

open access: yes, 2016
Raman spectroscopy reveals chemically specific information and provides label-free insight into the molecular world. However, the signals are intrinsically weak and call for enhancement techniques.
Hofmann, Matthias S.   +5 more
core   +2 more sources

Controlling Nonequilibrium Phonon Populations in Single-Walled Carbon Nanotubes [PDF]

open access: yes, 2007
We studied spatially isolated single-walled carbon nanotubes (SWNTs) immobilized in a quasi-planar optical λ/2-microresonator using confocal microscopy and spectroscopy.
Hartschuh, Achim   +3 more
core   +1 more source

Depth Profiling of Ion-Implanted 4H–SiC Using Confocal Raman Spectroscopy

open access: yesCrystals, 2020
For silicon carbide (SiC) processed by ion-implantation, dedicated test structure fabrication or destructive sample processing on test wafers are usually required to obtain depth profiles of electrical characteristics such as carrier concentration.
Ying Song   +6 more
doaj   +1 more source

DMD-based software-configurable spatially-offset Raman spectroscopy for spectral depth-profiling of optically turbid samples [PDF]

open access: yes, 2016
Spectral depth-profiling of optically turbid samples is of high interest to a broad range of applications. We present a method for measuring spatially-offset Raman spectroscopy (SORS) over a range of length scales by incorporating a digital micro-mirror ...
Gibson, Graham   +4 more
core   +2 more sources

Combined information from Raman spectroscopy and optical coherence tomography for enhanced diagnostic accuracy in tissue discrimination [PDF]

open access: yes, 2014
We thank the UK EPSRC for funding, the CR-UK/EPSRC/MRC/DoH (England) imaging programme, the European Union project FAMOS (FP7 ICT, contract no. 317744) and the European Union project IIIOS (FP7/2007-2013, contract no. 238802).
Ashok, P.C.   +5 more
core   +1 more source

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