With Raman spectroscopy, scientists can measure, with a lot of precision, the concentration levels and other traits of solids, liquids and gases alike. Its applications have demonstrated an increasing amount of potential in a growing number of fields. How It WorksHigh-precision Raman measurement devices gather information about substances at the molecular level. Generally, a monochromatic light is focused upon the material that is being measured. The laser beam will scatter uniquely depending on the material it lands on. Observing the scatter pattern makes it possible to identify the substance or substances being looked at, their level of concentration, and other properties. The technique -- which is actually a collection of slightly varying measurement strategies -- is named after the Raman effect, wherein electromagnetic waves collide with a molecule and affect its bonds. To start out with, a coherent wave of light is applied, making it easier to interpret the end result. How It Is UsedThe most common use of TouchRaman spectroscopy is in chemistry because it gathers its information from reacting to chemical bonds. However, its uses are wide-ranging. In the pharmaceutical industry, specialized devices such as TouchRaman probes are utilized to identify active ingredients in drugs, and what form those ingredients have at the molecular scale. TouchRaman tools such as these can also be valuable in physics experiments to determine the crystalline structure of substances, as well as measure their temperature. Some TouchRaman probes are even capable of collecting information regarding caustic substances that would normally damage the measuring instrument. Spatially Offset Raman SpectroscopyAnother kind of Raman spectroscopy, known as "spatially offset Raman spectroscopy," is capable of "seeing" past surface layers and can be applied to, for example, identify counterfeit drugs without disturbing their containing packages. They can also be used to monitor biological tissue, like an ultrasound. Research projects are in progress to see whether different TouchRaman and similar tools can be used to find explosive substances from a distance, and even to check whether individual living cells are cancerous, potentially making surgery much less risky and more precise, boosting favorable prognoses. MicrospectroscopyRaman spectroscopy can be used to look at polymers, cells, and forensics evidence on a microscopic level. It can even be used to determine the level of cholesterol or other substances in foods. CustomizationWhile manufacturers such as inphotonics raman probe sometimes sell ready-made TouchRaman and similar instruments to pharmaceutical, academic and government laboratories, those manufacturers can also specialize and construct tools optimally suited to the measurement and observation requirements of the purchaser.
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