Dr. Tatiana I. Solovieva Profile

Dr. Tatiana I. Solovieva

at POLYUS R&D Institute

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Publications (2)

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Proceedings Article | 7 March 2006 Paper

Sensing of earthquake precursors with laser interferometer

Vadim Milyukov, Valentina Azarova, Yuri Goliaev, Tatiana Solovieva

Proceedings Volume 4101, (2006) https://doi.org/10.1117/12.498379

KEYWORDS: Earthquakes, Interferometers, Helium neon lasers, Rod lasers, Michelson interferometers, Seismic sensors, Laser applications, Wavefronts, Resonators, Solids

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Application of laser Michelson interferometers as the strainmeters for sensing of earthquake precursors is described. Earthquake precursors can appear as anomalous deformations (local irregular crustal movements and tilts, global slow periodical lithosphere oscillations) or anomalous changes of the Earth free oscillations in amplitude and frequency. The most perfect instrument with highest sensitivity to the crustal movements is the laser interferometer-strainmeter. The precursoral relative crustal movements have the order 10-6- 10-7 for irregular local strains and 2-3 orders less for slow global seismic oscillations. Laser interferometer sensitivity to the crustal movements is approved to reach about 10-12 and it is obviously enough for detection of any type of precursoral strains. Some results of two seismic stations equipped by the long-base laser interferometer-strainmeters and built in Russia, at the North Caucasus (Baksan canyon) and in the Ukraine, near the Black Sea (the Crimea peninsula) are analyzed. These stations make continuous monitoring to registrate the changes of crustal strains, investigate the total spectrum of the Earth free oscillations and dynamics of lithosphere slow deformations. The sensitivity of the instruments is so high that they registrate the earthquakes all over the world, and recent results are presented in this paper. There are some good approvals that the deformation precursors sensing is the most perspective way for the earthquake prediction, and the long-base laser interferometers-strainmeters demonstrate high possibilities in this application. Perspectives of development of the new laser interferometer-strainmeters based on Russia high optical technologies and unique design are discussed.

Proceedings Article | 24 April 2003 Paper

Compact and smart laser diode systems for cancer treatment

Viatcheslav Svirin, Victor Sokolov, Tatiana Solovieva

Proceedings Volume 5116, (2003) https://doi.org/10.1117/12.499483

KEYWORDS: Photodynamic therapy, Laser therapeutics, Laser tissue interaction, Tissues, Semiconductor lasers, Temperature sensors, Control systems, Oncology, Tumors, Cancer

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To win the cancer is one of the most important mankind task to be decided in III Millenium. New technology of treatment is to recognize and kill cancer cells with the laser light not by surgery operation, but by soft painless therapy. Even though from the beginning of the 80s of the last century this technology, so-called photodynamic therapy (PDT) has received acceptance in America, Europe and Asia it is still considered in the medical circles to be a new method with the little-known approaches of cancer treatment. Recently the next step was done, and the unique method of PDT combined with laser-induced thermotherapy (LITT) was developed. Compact and smart diode laser apparatus “Modul-GF” for its realization was designed. In this report the concept of this method, experimental materials on clinical trials and ways of optimization of technical decisions and software of apparatus “Modul-GF”, including the autotuning of laser power dependently on tissue temperature measured with thermosensors are discussed. The special instruments such as fiber cables and special sensors are described to permit application of “Modul-GF” for the treatment of the tumors of the different localizations, both surface and deeply located with using of the endoscopy method. The examples of the oncological and nononcological pathologies’ treatment by the developed method and apparatus in urology, gynecology, gastroenterology, dermatology, cosmetology, bronchology, pulmonology are observed. The results of clinical approval the developed combination of PDT&LITT realized with “Modul-GF” leads to essentially increasing of the treatment effectiveness.

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SPIE Conference Volume | 26 April 2001

Low-Level Laser Therapy

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Low-Level Laser Therapy

5 February 2001 | none, Russian Federation

Low-Level Laser Therapy

5 February 2001 | none, Russian Federation

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