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PI Physik Instrumente - Revolution In Photonics Align LW LB 3/24

PD-LD Granted Patent

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Specialty photonics packaging company PD-LD Inc. of Pennington, N.J., has received US Patent No. 7,982,869, which protects the use of dual laser sources for the analysis of a single substance. The technique, based on proprietary VBG (volume Bragg grating) laser wavelength stabilization, provides the underlying mechanism for shifted excitation Raman differential spectroscopy, 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 offer Raman excitation sources that extend portable and lab-based instruments.
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Published: March 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 scienceslight speedNew JerseyPD-LD Inc.Raman spectroscopysecuritySERDSshifted excitation Raman differential spectroscopyTest & MeasurementUS Patent 7982869VBG laser wavelength stabilizationLasers

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