Mr. Alexander S. Novikov Profile

Alexander S. Novikov

R&D Manager at art photonics GmbH

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Publications (6)

Proceedings Article | 13 March 2024 Presentation

Advanced fiber spectroscopy for industrial process control and biomedical diagnostics

Viacheslav Artyushenko, A. Bocharnikov, A. Novikov, M. Yusuf, W. Gries, M. Warman, E. Feliksberger

Proceedings Volume PC12835, PC128350K (2024) https://doi.org/10.1117/12.3002938

KEYWORDS: Spectroscopy, Raman spectroscopy, Fiber optics, Diagnostics, Biomedical optics, Advanced process control, Mid-IR, Biomedical applications, Near infrared spectroscopy, Microwave radiation

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Proceedings Article | 13 March 2024 Presentation

Fiber optic probe for complementary mid-infrared and Raman spectroscopy

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

Proceedings Volume PC12835, PC128350A (2024) https://doi.org/10.1117/12.3002907

KEYWORDS: Raman spectroscopy, Mid-IR, Fiber optics, Spectroscopy, Biological samples, Luminescence, Fluorescence spectroscopy, Attenuated total reflectance, Tissues, Statistical analysis

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Proceedings Article | 30 May 2023 Poster

Imprinting and profiling of silver-halide polycrystalline fiber end faces to create moth-eye anti-reflective microstructures to reduce Fresnel reflection losses

Sonata Adomaviciute-Grabusove, Jonas Hinkel, Iskander Usenov, Alexander Novikov, Tatiana Sakharova, Elena Feliksberger, Ute Geißler, Torsten Döhler

Proceedings Volume 12573, 1257314 (2023) https://doi.org/10.1117/12.2670749

KEYWORDS: Reflection, Profiling, Antireflective coatings, Silver, Refractive index, Laser microstructuring, Carbon dioxide lasers

Proceedings Article | 6 March 2023 Presentation

Advances in multispectral fiber sensing for biomedical applications (Conference Presentation)

Alexander Novikov, Iskander Usenov, Andrey Bogomolov, Tatiana Sakharova, Alexey Bocharnikov, Viacheslav Artyushenko

Proceedings Volume PC12372, PC123720C (2023) https://doi.org/10.1117/12.2650615

KEYWORDS: Biomedical optics, Spectroscopy, Raman spectroscopy, Fiber optics, Biosensing, Tissues, Tissue optics, Near infrared, Luminescence, Fluorescence spectroscopy

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Proceedings Article | 7 November 2022 Paper

CO and CO2 laser beam guiding with silver halide polycrystalline fibers and hollow waveguides

Alexander Novikov, Iskander Usenov, V. Artyushenko, Hans-Joachim Eichler

Proceedings Volume 12347, 1234706 (2022) https://doi.org/10.1117/12.2656305

KEYWORDS: Gas lasers, Optical fibers, Carbon monoxide, Silver, Hollow waveguides, Carbon dioxide lasers, Infrared radiation, Mid-IR, Antireflective coatings, Spectroscopy

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Proceedings Article | 30 May 2022 Presentation

Fiber sensors with multispectral approach for biomedical and industrial applications

Iskander Usenov, Tatiana Sakharova, Alexander Novikov, Andrey Bogomolov, Alexey Bocharnikov, Viacheslav Artyushenko

Proceedings Volume PC12139, PC121390I (2022) https://doi.org/10.1117/12.2624472

KEYWORDS: Chemical analysis, Raman spectroscopy, Biomedical optics, Spectroscopy, Fiber optics sensors, Fiber optics, Biological research, Statistical analysis, Attenuated total reflectance, Process control

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Fiber optic spectroscopy label-free composition analysis makes it the best tool for reaction monitoring in Process Analytical Technologies (PAT) and chemical analysis of bio tissues for medical diagnostics in-citu and in-vivo. Biological samples and modern chemicals are complex substances, which composition analysis requires combining several spectroscopic techniques. Fiber optics probes provide compact, flexible, robust, and cost-effective solutions to merge different optical modalities in one tool for sample analysis at the same point. This spatial synchronization of the analysis is critical for heterogeneous samples. Recent advances in optical fiber manufacturing significantly expand the wavelength range of the analysis from 0,3-2µm range with Silica fibers towards middle IR (with chalcogenide, AgCl:AgBr Polycrystalline PIR fibers, and Ag/AgI hollow glass waveguides covering together 1-20 µm range). We were able to fuse all 4 key spectroscopic methods (Fluorescence, NIR, MIR, and Raman) in compact fiber probes. In preliminary studies of tissue samples we showed that a combination of fluorescence with NIR or ATR-IR spectroscopy results in much better accuracy of the tumor margin detection than each of the individual methods separately. This synergy is explained by the capability of different light modalities to deliver complementary chemical information. We are using information from fluorescence background subtracted from Raman spectra to enhance the accuracy of the analysis. This concept, combined with advanced chemometrics data analysis, enables the development of customized spectral fiber sensors based only on several wavelengths or wavelength regions. Our recent experiments have shown the possibility of combining mid-IR ATR absorption and Raman spectroscopy in one compact fiber-optic probe. Thus it is possible to obtain an extended optical spectrum of molecular vibrations from the same point of a complex sample. These advances turn fiber-optic multispectral probes into the universal tool for applications that require in vivo analysis or real-time process monitoring.

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