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Plasma spray–deposited metal films are used in many industrial applications. This study shows how high resolution terahertz time-domain spectroscopy (THz-TDS) can be used to analyze and characterize such films.

Terahertz Spectral Characterization of Plasma Spray–Deposited Nickel Film on an Alumina Cylinder

Surface-enhanced Raman spectroscopy (SERS), using gold nanoparticles, is useful for detection of low-levels of many analytes, including the water pollutant malachite green (MG).

Synthesis of Differently Sized Gold Nanoparticles for SERS Applications in the Detection of Malachite Green

SERS can be used for the detection and monitoring of drugs as pure compounds and mixtures. A demonstration of a sample preparation method used to detect components with weak substrate adsorption in the spectrum of a mixed solution is shown.

Analysis of a Mixture Solution Using Silver Nanoparticles Based on Surface-Enhanced Raman Spectroscopy (SERS)

The application of data mining combined with data fusion of Raman and mid- infrared spectra was studied to improve discrimination ability for modeling the geographical origins of rice.

Enhanced Raman and Mid-Infrared Spectroscopic Discrimination of Geographical Origin of Rice by Data Mining and Data Fusion

David Tuschel is a Raman applications manager at Horiba Scientific in Edison, New Jersey, where he works with Fran Adar. David is sharing authorship of the "Molecular Spectroscopy Workbench" column with Fran.

Raman and photoluminescence spectroscopy were combined with imaging to examine the spatial variation of solid-state structure and electronic character of two-dimensional (2-D) tungsten disulfide (WS2) crystals, which represent a family of new inorganic 2-D materials.

Combined Raman and Photoluminescence Imaging of Two-Dimensional WS2

Raman measurements of chromite minerals demonstrated that chromium content could be accurately determined, supporting a possible application of portable Raman devices on Earth or in space for mineral analysis of asteroids and planets.

Raman Spectroscopy as a Tool for the Quantitative Estimation of Chromium Aluminum Oxide Content in Chromite

Fran Adar is the Worldwide Raman Applications manager for Horiba Jobin Yvon.

Raman spectra were measured in combination with 2D-COS analysis to understand how the addition of propyl side groups to a biopolymer backbone influences the structure of the polymer at the atomic level.

Assignment of Raman Bands of a Set of Biopolymers with Small Increases in an Added Functional Group

Jerome Workman Jr. serves on the Editorial Advisory Board of Spectroscopy and is currently with Unity Scientific LLC. He is also an adjunct professor at Liberty University and U.S. National University. He can be reached at jworkman04@gsb.columbia.edu.

Zeolites are the most-used catalyst in industry. Synthesizing tailor-made zeolites is hampered by a poor understanding of how zeolite crystals actually form in solution. Scott M. Auerbach of the University of Massachusetts at Amherst is addressing this challenge with Raman spectroscopy.

Using Raman Spectroscopy for the Characterization of Zeolite Crystals

Raman spectroscopy is extremely useful for characterizing crystalline materials.

Raman Crystallography and the Effect of Raman Polarizability Tensor Element Values

Chemistry can help us understand the past.

Using Mobile Spectroscopic Instruments to Characterize Historic Artifacts

Graphene exhibits special properties, such as high strength and high electrical and thermal conductivity and as such is highly desirable for key electronic components. A new Raman spectroscopy sampling technique has been applied to the characterization of batches of graphene that provides a simple, at-line method for obtaining key product data.

Atline Analysis of Commercial Graphene Products with Raman Spectroscopy

Raman spectroscopy is a valuable process analytical technology (PAT) for many applications across multiple industries, as a result of its many advantages, such as molecular specificity, ability to be directly coupled to a reaction vessel, and compatibility with solids, liquids, gases, and turbid media.

Making Industrial Raman Spectroscopy Practical

New Raman spectroscopy applications are emerging in non-traditional fields because of advances in easy-to-use commercial Raman spectroscopy instrumentation. With improvements in lasers, optics, and detectors, Raman spectroscopy has developed into a powerful measurement solution for manufacturing and quality control applications.

Raman Spectroscopy: Bringing Inline Analysis to Production

Spectroscopy Magazine spoke with Claudia Conti about her work in micro-SORS.

Craver Award: Micro-Spatially Offset Raman Spectroscopy (Micro-SORS) for Research in the Conservation of Cultural Heritage 

Raman Spectroscopy

Spectroscopy Magazine sat down with Kay Sowoidnich to talk about how his group has demonstrated the potential of shifted-excitation Raman difference spectroscopy (SERDS) as an efficient tool for soil nutrient analysis.

SAS Meggers Award: Analyzing Soil and Meat with Shifted Excitation Raman Difference Spectroscopy 

SERS and TERS

In the past decades, we have witnessed the evolution of imaging technologies based on vibrational spectroscopy. In particular, the technical developments in Raman, coherent anti-Stokes Raman spectroscopy (CARS), and stimulated Raman scattering (SRS) microscopy allow researchers to gain new insights in biological, medical, and pharmaceutical studies.

A Further Leap of Biomedical Raman Imaging

Portable spectroscopic instruments have not had significant visibility within the scientific community compared with, for instance, the current generation of high-performance laboratory mass spectrometers.

The Future of Portable Spectroscopy

Forensic traces are physical remnants of past events that provide critical information for criminal and civil investigations and adjudications. The scientific examination of traces is an incredibly valuable tool for forensic investigations, because the skilled interpretation of traces yields factual answers to a range of pertinent questions.