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Raman Spectrometers are the foundation that B&W Tek was built on. A wide variety of detectors are available depending on your current project.

When choosing a Raman instrument, one of the primary concerns is the wavelength of the laser integrated into the Raman spectrometer system. Different excitation wavelengths provide specific strengths and weaknesses, allowing users to optimize the measurement of different samples by choosing the Raman excitation laser wavelength.

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The most important part of a lighthouse might be one of the beautiful tools hidden inside of it: the Fresnel lens, a breakthrough that changed seafaring and saved lives.

Raman spectroscopy takes a molecular fingerprint and matches it against a library to identify and confirm samples. Raman fingerprints have very fine structural detail that make identification accurate and reliable. Raman can also provide information about the amount of material present in a sample or a mixture.

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The benefits of a TE-cooled spectrometer in Raman systems are discussed, such as delivering lower system noise over longer integration times, resulting in lower detection limits.

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As the above video shows, these lenses satisfied a need for lighthouses that could shine farther and through dense layers of fog. The Fresnel lens, invented by Augustin-Jean Fresnel, helped do that by capturing all the light coming from a lamp, then magnifying and steering it in one direction. Suddenly, lighthouses became more useful and shipwrecks diminished.

Start with the basics. Read our feature article from Laser Focus World to lear more about the fundamentals of Raman spectroscopy.

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The choice of fiber optic probe for sampling is critical, given that it has to allow the laser light to reach the sample but then exclude it from the detectors. High-performance B&W Tek components move light efficiently, providing high sensitivity.

Lasers from our sister company, Innovative Photonic Solutions, are the driving force behind our DIY systems. Contact a B&W Tek representative to learn more today.

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Fresnel lenses are still in operation today. According to the US Lighthouse Society, more than 75 Fresnel lenses are in use in American lighthouses, and businesses such as Dan Spinella’s Artworks Florida craft replicas that capture the beauty — and functionality — of the 19th-century breakthrough.

DIY Systems from B&W Tek allow you to build exactly what you need to complete your project. We also have pre-configured systems available for purchase; just get in touch with us for a quote.

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