This article is cited in 4 papers

Special issue on laser biophotonics

Influence of the measurement configuration on the results of Raman microspectroscopy of human hair

N. N. Brandt^a, E. I. Travkina^a, E. V. Mikhal'chik^b, A. Yu. Chikishev<sup>a

a</sup> Faculty of Physics, Lomonosov Moscow State University
^b Federal Research And Clinical Center Of Physical-Chemical Medicine

Abstract: Increasing interest in spectroscopic studies of human hair raises the question about the accuracy of measurement of their spectra and requires optimisation of experimental facilities. An original method of obtaining transverse hair sections without using a microtome and chemical influence is proposed. The results obtained by confocal Raman microspectroscopy of human hair differently oriented with respect to the optical axis of the measuring setup are compared. It is shown that, in addition to expected changes in the spectra measured at different distances from the hair periphery in the direction to its centre, the spectra measured in the case of hair excitation perpendicular and parallel to its axis are also considerably different.

Keywords: Raman microspectroscopy, Raman mapping of human hairs, hair cross section preparation.

Received: 02.10.2021

 English version: Quantum Electronics, 2022, 52:1, 36–41

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