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Using Spectroscopy in Advanced Gem Testing

Nowadays the gem market is increasingly employing photonics technologies to meet the demands of the fine jewelry and gem industry. This is due to the fact that the technology used to produce synthetic gemstones makes it difficult for the gem market to identify treatments applied to stones. Also, it’s difficult to identify and classify natural...

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Portable Raman Spectroscopy in Archeology

Portable Raman Spectroscopy is a very useful tool for studying archeological sites, enabling in situ analysis and thus reducing the impact of these kinds on key cultural sites. With a reduction in the size of the Raman spectrometer, there has been an increase in the usage of Raman spectroscopy for archeological investigations. The portability enables...

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The Most Promising Types of Fiber Optic Probes for Broad Spectral Range In-line Analysis

Fiber probes have become one of the most widespread tools in modern spectroscopy thanks to their flexibility and user-friendliness. Fiber optic probes are the ideal solution for monitoring real-time kinetic reactions, analyzing large or awkwardly shaped samples, sampling in vivo difficult. There are four types of the most common fiber optic probes: Reflectance probes These...

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What Laser Sources are Best Suited for Creating High-Quality Raman Systems?

Nowadays Raman spectroscopy has become a cost-efficient and much-appreciated tool with applications in material science and in-line process control for pharmaceutical, food & beverage, chemical and agricultural industries. For instance, Raman probes and based on them Raman systems are used across the whole value chain in the pharmaceutical industry. High-resolution Raman microscopes help researchers in...

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Raman Spectroscopy Technique Measures Blood Glucose Levels As Effectively As a Finger Prick Test

The researchers from the University of Missouri School of Medicine and the Massachusetts Institute of Technology recently evaluated the accuracy of an MIT-developed technology to monitor blood glucose levels without needles or a finger prick. Early results show that the noninvasive technology measures blood glucose levels as effectively as a finger prick test. Raman spectroscopy...

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Fiber Optic Probes for Monitoring Polymer Production Process

Polymers have excellent chemical resistance, strength, and elasticity, but such properties can hinder their chemical analysis. The quality control techniques used for measuring additive levels in polymers may vary, depending on the physical and chemical properties of them. Even slight differences in the process parameters can cause large variations in the characteristics of polymer products...

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Chalcogenide and Silver-Halide Single-Mode Fibers for Modal Filtering within the European DARWIN Mission

The DARWIN mission should allow to study the new extrasolar planets and to discover potential traces of primitive life around 2025. Today employed methods in the search for exoplanets are indirect: the planets are detected by observing and measuring the movements which they impose on their central star; the planets are detected by the effects...

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Fiber Optic Cables in Thawing Arctic

Sea cables have been an important method of global communication since the mid-19th century. The advent of fiber optic products in the 1990s made modern sea cabling more critical. Today this fiber optic network comprises some one million kilometers in total and carries almost all data transfers. According to a recent report, fiber optic network...

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Rheology-Raman Spectroscopy for Tracking Polymer Crystallization

Rheology is a well-established area of study for a wide range of materials. Such analytical technique of choice in studying polymers can correlate the absolute flow and deformation characteristics of a specific product, in a relation to its behavior towards a particular application or processing step. This science is defined as the study of flow...