Multimodal fiber probe for simultaneous mid-infrared and Raman spectroscopy

Alexander Novikov; Stanislav Perevoschikov; Iskander Usenov; Tatiana Sakharova; Viacheslav Artyushenko; Andrey Bogomolov

doi:10.1038/s41598-024-57539-4

Multimodal fiber probe for simultaneous mid-infrared and Raman spectroscopy

Sci Rep. 2024 Mar 28;14(1):7430. doi: 10.1038/s41598-024-57539-4.

Authors

Alexander Novikov^{1

2}, Stanislav Perevoschikov^{3

4}, Iskander Usenov^{3

5}, Tatiana Sakharova³, Viacheslav Artyushenko³, Andrey Bogomolov^{3

6}

Affiliations

¹ Art Photonics GmbH, Rudower Chaussee 46, 12489, Berlin, Germany. an@artphotonics.de.
² Technische Universität Berlin, Straße Des 17. Juni 135, 10623, Berlin, Germany. an@artphotonics.de.
³ Art Photonics GmbH, Rudower Chaussee 46, 12489, Berlin, Germany.
⁴ Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, Bld. 1, 121205, Moscow, Russia.
⁵ Technische Universität Berlin, Straße Des 17. Juni 135, 10623, Berlin, Germany.
⁶ Samara State Technical University, Molodogvardeyskaya Str. 244, 443100, Samara, Russia.

Abstract

A fiber probe has been developed that enables simultaneous acquisition of mid-infrared (MIR) and Raman spectra in the region of 3100-2600 cm^-1. Multimodal measurement is based on a proposed ZrO₂ crystal design at the tip of an attenuated total reflection (ATR) probe. Mid-infrared ATR spectra are obtained through a pair of chalcogenide infrared (CIR) fibers mounted at the base of the crystal. The probe enables both excitation and acquisition of a weak Raman signal from a portion of the sample in front of the crystal using an additional pair of silica fibers located in a plane perpendicular to the CIR fibers. The advantages of combining MIR and Raman spectra in a single probe have been discussed.