Agency for Science, Technology and Research

Kapil Dev

Malini Olivo

Renzhe Bi

Dinish Unnimadhava Kurup Soudamini Amma

Gurpreet Singh

Chris Jun Hui Ho

Provided is an optical probe, and a Raman spectroscopy system using such, including excitation and detection optics coupled to a sampling optics via a beam splitter, in confocal arrangement with a sample focal plane of the sampling optics. The detection optics is arranged to receive Raman signal from the sample focal plane and direct it onto a tip of a detection optical fiber. The optical probe may further include a positioning device mechanically coupled to the sampling optics and configured to control a position of the sample focal plane. In the Raman spectroscopy system a light source is coupled to the excitation optics via an excitation optical fiber, and a spectrometer is coupled to a detection optics via a detection optical fiber. Provided is further a method for measuring Raman signal depth profile in a sample, wherein sample's Raman spectra is measured and stored at different focal plane positions.

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Singapore, Singapore

Kapil Dev