Letter of Reference

During education in the Department of Physics in the Leningrad State University, Alexei Passetchnik has got fundamental knowledge in the basic physical and mathematical disciplines such as the Mechanics, Optics, Nonlinear optics, Quantum electronics, Thermodynamics, Electrodynamics, Theoretical physics, Astrophysics, Quantum mechanics, Quantum electrodynamics, Relativity theory, Field theory, Nuclear physics, Physics of elementary particles, Laser nuclear fusion, Automation of physical experiment, Mathematical physics, Mathematical analysis, Linear algebra, Theory of functions of complex variable, Differential geometry, Philosophy, and another included in a university program.

Alexei joined Vavilov State Optical Institute in 1986, where he prepared the graduation work “Propagation of a high intensive nanosecond radiation pulse through a coherent amplifying medium in the saturation mode”. The results of the work can be interpreted as investigation of dynamic Zeeman effect in active medium of an iodine photodissociative amplifier, operating at the wavelength of 1.315 microns.

During the work, Alexei has shown himself as the highly skilled specialist with well understanding of theoretical and practical problems. Alexei participated in works on research of heterodyne coherent detection of low intensive infrared radiation sources with a CO2 laser as a heterodyne (wavelength is 10.6 microns) and in research of opportunities of fast frequency shift over a wide range and precision laser frequency stabilization as well as in development and creation of new waveguide gas lasers. Alexei developed powerful high-voltage supplies for lasers and the high-frequency systems of laser pumping. Alexei took an active participation in automation of experiments and creation of a local area network of the department.

Alexei has shown himself as the highly skilled expert in the computer facilities and programming. He was engaged in creation of radioelectronic devices of controlling the experimental equipment. In his experimental work, Alexei has shown brilliant knowledge of optics, vacuum engineering, high-voltage electrical equipment, microwave technique, radioelectronic equipment, and computer engineering.

Prof. Valery M. Kiselev
Post-address: 199034, Institute for Laser Physics, Vavilov State Optical Institute, Birzhevaya 12, St.-Petersburg, Russia.
Phone: +7 (812) 328 57 34
e-mail: leonov@ilph.spb.su

Dr. Nikolay A. Gryaznov
Post-address: 199034, Institute for Laser Physics, Vavilov State Optical Institute, Birzhevaya 12, St.-Petersburg, Russia.
Phone: +7 (812) 328 57 34
e-mail: ngryaznov@yahoo.com