Exploratory analysis of polarized Raman spectra of ZnGeP2 crystals using machine learning methods
The exploratory analysis of polarization Raman scattering spectra of ZnGeP2 crystal samples was performed using machine learning methods. The experimental data were obtained using a setup for recording Raman spectra in three configurations: natural light, parallel polarized light, and perpendicular polarized light. Machine learning methods included reducing the dimensionality of spectral data using the principal component method, block least squares method, and stochastic neighbor embedding with t-distribution. The separability of the data into groups depending on the crystallographic direction and polarization of the crystals was shown. The results can be used to build predictive models for determining the orientations of ZnGeP2 crystals.
Keywords
ZnGeP2, raman scattering, machine learning, polarization, phonon modesAuthors
| Name | Organization | |
| Vrazhnov Denis A. | V.E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences | vda@iao.ru |
| Knyazkova Anastasia I. | V.E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences | knyazkova@iao.ru |
| Snegerev Mikhail S. | Tomsk State University | snegerev@mail.tsu.ru |
| Raspopin Georgy K. | V.E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences | RaspopinGK@mail.tsu.ru |
| Kistenev Yury V. | V.E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences | yuk@iao.ru |
References
Exploratory analysis of polarized Raman spectra of ZnGeP2 crystals using machine learning methods | Izvestiya vuzov. Fizika. 2025. № 11. DOI: 10.17223/00213411/68/11/9