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PD-LD Receives Patent for SERDS Technology

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PENNINGTON, N.J., Jan. 17, 2012 — Specialty photonics packaging company PD-LD Inc. was granted US Patent No. 7,982,869, which protects the use of dual laser sources for the analysis of a single substance, the company announced. The novel technique, based on proprietary VBG (volume Bragg grating) laser wavelength stabilization, provides the underlying mechanism for shifted excitation Raman differential spectroscopy (SERDS). SERDS is an analytical technique that the company says represents a significant development in the capabilities of Raman spectroscopy. CEO Vladimir Ban said that the patent will allow PD-LD to...Read full article

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    Published: January 2012
    Glossary
    raman spectroscopy
    Raman spectroscopy is a technique used in analytical chemistry and physics to study vibrational, rotational, and other low-frequency modes in a system. Named after the Indian physicist Sir C.V. Raman who discovered the phenomenon in 1928, Raman spectroscopy provides information about molecular vibrations by measuring the inelastic scattering of monochromatic light. Here is a breakdown of the process: Incident light: A monochromatic (single wavelength) light, usually from a laser, is...
    AmericasBusinessdefensedual laser sourceslife sciencesNew JerseyPD-LD Inc.Raman spectroscopysecuritySERDSshifted excitation Raman differential spectroscopyTest & MeasurementUS Patent 7982869VBG laser wavelength stabilizationLasers

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