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Going with the grain: Raman takes a look

Date: Jan 7, 2016

Author: David Bradley

Raman microspectroscopy can reveal the orientation distributions of individual grain domains within a crystalline material as well as scanning electron microscopy.

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Journal Highlight: Toward a Raman/FORS discrimination between Art Nouveau and contemporary stained glasses from CdSxSe1−x nanoparticles signatures

Date: Dec 9, 2015

Author: spectroscopyNOW

Raman and fiber optics reflectance spectroscopy has been used to study the nanostructures of six samples of historical glass produced between the late 1920s and modern day.

Read More thumbnail image: Journal Highlight Toward a RamanFORS discrimination between Art Nouveau and contemporary stained glasses from CdSxSe1x nanoparticles signatures

Cavity optomechanics: SERS boost

Date: Dec 1, 2015

Author: David Bradley

The tools and concepts of cavity optomechanics can be exploited at the molecular scale to overcome the sensitivity limitations of SERS, surface enhanced Raman scattering, according to work undertaken at École Polytechnique Fédérale de Lausanne (EPFL).

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Journal Highlight: Avoiding misidentification of bands in planetary Raman spectra

Date: Nov 15, 2015

Author: spectroscopyNOW

Raman spectra were measured from a number of minerals that are Mars analogues to identify components that might cause spectral ambiguity, highlighting where such confusion may occur and identifying the most useful bands for differentiation.

Read More thumbnail image: Journal Highlight Avoiding misidentification of bands in planetary Raman spectra

Laser and chips: Raman is a diamond

Date: Nov 1, 2015

Author: David Bradley

US researchers have used diamond to develop a new class of Raman laser sufficiently compact to fit on a photonic chip. The device uses a nanoscopic diamond resonator shaped like a racetrack to convert one frequency of laser light to an entirely different range of wavelengths, opening up new options for broadband data communications and many other applications.

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Journal Highlight: Insights into the kinetics of methane hydrate formation in a stirred tank reactor by in situ Raman spectroscopy

Date: Oct 15, 2015

Author: spectroscopyNOW

The kinetics of methane hydrate formation in a stirred tank were followed by the simultaneous application of macroscopic and microscopic measurements, aided by in situ Raman spectroscopy.

Read More thumbnail image: Journal Highlight Insights into the kinetics of methane hydrate formation in a stirred tank reactor by insitu Raman spectroscopy

Martian chronicled: By Raman

Date: Oct 1, 2015

Author: David Bradley

Seven samples of Icelandic tephra minerals were analysed using X-ray diffraction (XRD), Raman spectroscopy and Fourier transform infrared (FTIR) as a proxy for Martian rocks to show how a comprehensive library of spectra might be built  up ahead of a fact-finding mission to the Red Planet.

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Journal Highlight: Demonstration of a signal enhanced fast Raman sensor for multi-species gas analyses at a low pressure range for anesthesia monitoring

Date: Sep 6, 2015

Author: spectroscopyNOW

A fully functional gas-phase Raman system with a multipass cavity has been designed for measurements in the low-pressure regime, especially for anesthesia monitoring.

Read More thumbnail image: Journal Highlight Demonstration of a signal enhanced fast Raman sensor for multi-species gas analyses at a low pressure range for anesthesia monitoring

Urinary tract infections: Lab-on-a-disc detection

Date: Sep 1, 2015

Author: David Bradley

A lab-on-a-disc platform that combines microfluidics technology and Raman microscopy could be used for the earlier detection of urinary tract infection, according to a new study.

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Journal Highlight: Real-time in vivo cancer diagnosis using Raman spectroscopy

Date: Aug 3, 2015

Author: spectroscopyNOW

An overview is presented on the latest development of real-time in vivo Raman systems for cancer detection, covering instrumentation, data handling, oncology applications and the diagnosis of different kinds of cancer.

Read More thumbnail image: Journal Highlight Real-time in vivo cancer diagnosis using Raman spectroscopy
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