MUMBAI, India, Aug. 29 -- Intellectual Property India has published a patent application (202517075257 A) filed by Merck Patent Gmbh, Darmstadt, Germany, on Aug. 7, for 'reduction of stray light noise in optical raman probe sensors.'

Inventor(s) include Puget, Renaud; Thomas, Fabrice; Duchemin, Celine; Sanchez, Celia; and Jourdainne, Laurent.

The application for the patent was published on Aug. 29, under issue no. 35/2025.

According to the abstract released by the Intellectual Property India: "A system and method for quantifying the stray light that enters a Raman optical sensor and removes this from the Raman spectrum is disclosed. One or more background noise measurements are performed by the Raman analyzer wherein the laser is disabled during these background noise measurements. One or more traditional signal acquisition measurements are then performed. The results from the background noise measurements and the traditional signal acquisition measurement are then processed. This results in a clean spectrum, where the background noise has been significantly reduced. In some embodiments, background noise measurements are performed before and after the traditional signal acquisition measurement and these noise measurements are averaged."

The patent application was internationally filed on Feb. 02, 2024, under International application No.PCT/EP2024/052590.

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