Abstract

A simple but very efficient device for micro-Raman spectroscopy of highly absorbing solid samples is described. The device allows rapid scanning of the focused laser beam on the surface of a solid sample, which avoids heating of the sample, By means of a pair of computer-controlled piezo-translators, which are fixed to the microscope objective, the laser beam can be scanned in a great variety of traces, the scattered light of which is collected and optically transformed into a very small spot at the entrance slit of the spectrometer. The system is tested on highly absorbing (partially) polymerized diacetylene single crystals at low temperatures.

Rapid Scanning Raman Spectroscopy

Michel Delhaye
Appl. Opt. 7(11) 2195-2199 (1968)

Light sheet Raman micro-spectroscopy

Walter Müller, Martin Kielhorn, Michael Schmitt, Jürgen Popp, and Rainer Heintzmann
Optica 3(4) 452-457 (2016)

Line focusing in micro-Raman spectroscopy

M. Ivanda and K. Furić
Appl. Opt. 31(30) 6371-6375 (1992)

Design of a confocal micro-Raman spectroscopy system and research on microplastics detection

Jitao Lu, Qingsheng Xue, Haoxuan Bai, and Nan Wang
Appl. Opt. 60(27) 8375-8383 (2021)

Surface-scanning technique for Raman spectroscopy of highly colored crystals

J. A. Koningstein and B. F. Gächter
J. Opt. Soc. Am. 63(7) 892-893 (1973)