Optical Scheme for a Laser-Robot pra-0108

Full Title Development of an Optical Scheme for a Laser-Robot, Characterized by the High Stability of Laser Beam Direction at the Output of its Movable Arm, Located in an Arbitrary Space Position Tech Area / Field

• PHY-OPL: Physics / Optics and Lasers

• MAN-ROB: Manufacturing Technology / Robotics

Brief Description of Technology A resonator with a "cat-eye" reflector, characterized by its very low sensitivity to anti-symmetrical distortions (relative to the optical axis) of the resonator, including its misalignment, has been developed. The unique properties of the resonator have been studied theoretically and verified experimentally. Its sensitivity to optical wedge-wise distortions proved to be several dozen times lower than that of traditionally used resonators. The angular divergence of the laser beam was observed to be close to the diffraction limit, fluctuations of its propagation direction being within subdiffraction range. Such a resonator is proposed to be used as the basis for the development of a laser-robot. This idea has been analyzed theoretically and verified in a number of experiments. By now, the analysis of the design of a laser-robot of such kind has been carried out, taking into account vibrations of real working conditions.

Legal Aspects The research may be patented.

Special Facilities in Use and Their Specifications Laser.

Scientific Papers S.A. Dimakov, S.I. Kliment'ev, V.I. Kuprenyuk, I.B. Orlova, V.V. Sergeev, V.E. Sherstobitov, Low-sensitive misalignments resonator. Proc. SPIE (1994) V.2257, pp. 187-192.

Laser Cleaning of Water Surface from Hydrocarbon Pollutants pra-0020

Full Title Laser Cleaning of Water Surface from Hydrocarbon Pollutants Tech Area / Field

• NNE-FUE: Non-Nuclear Energy / Fuels

• ENV-RED: Environment / Remediation and Decontamination

• PHY-OPL: Physics / Optics and Lasers

Brief Description of Technology Various methods (such as mechanical, chemical) for the removal of oil pollutants from water surface are known, but they only permit to effectively clean the water surface from pollutants with a thickness of about 100 . Their cleaning efficiency sharply decreases with decreasing pollutant thickness. At thicknesses of under 40 , there is no alternative to the laser cleaning method.

At TRINITI, we have investigated high-energy efficiency mechanisms for the hydrodynamic removal of thin oil layers under laser radiation and elaborated the technical principles of the technological system based on pulse-periodical CO₂-lasers.

Legal Aspects There is Russian Patent.

Special Facilities in Use and Their Specifications None in this research.

Scientific Papers Oil Film Removal from Water Surface by Means of Laser Beam. Kuzenko A.I. Gurashvily V.A., Krasjukov A.G., Naumov V.G., Rodin A.V., Sarkarov N.E., Shashkov V.M., Sharkov V.F. International Conference on LASER 96, Portland, Oregon, December 2 – 6.

500 W Excimer Laser for Industrial Applications pra-0021

Full Title Universal 500 W Excimer Laser for Industrial Applications Tech Area / Field

• PHY-OPL: Physics / Optics and Lasers

Brief Description of Technology A compact industrial 500 W excimer laser has been developed. The unique laser design allows to obtain different combinations of output pulse energy and pulse repetition rate. Thus potential users of the laser can chose the optimum combinations of laser parameter needed by them.

Legal Aspects Russian patents.

Special Facilities in Use and Their Specifications Production of multi-chip modules, TFT annealing of flat panel display, micro-machine metals (ceramics, polymers).

Scientific Papers Borisov, A.Yu. Vinokhodov, Yu.B. Kirykhin "Output Energy Evolution in High-Repetition-Rate XeCl Laser with an Average Output of 400 W", Sov. J. Quantum Electronics, vol.17, pp.936-942, May 1987.

V.Y. Baranov, V.M. Borisov, D.M. Molchanov, V.P. Novikov, and O.B. Khristoforov "Wide Aperture Electric Discharge XeCl Laser with UV Pre-ionization and an Output Energy of 20 J", Sov.J.Qantum Electronic, vol.17, pp.978-983 August, 1987.

V.M. Borisov, A.Yu. Vinokhodov "A Repetitively Pulsed XeCl Laser with a Power of 600 W for Technological Applications", Sov.J.Qantum Electronic, vol.18, No 2, pp.183-185, 1991.

B.Yu. Baranov, V.M. Borisov, A.Yu. Vinokhodov, Yu.B. Kirykhin, Yu.Yu. Stepanov, O.B. Khristoforov "Intense high repetition rate UV pre-ionized excimer lasers and applications" Invited report on "High-Power Gas Lasers", 15-17 Jan.1990, Los Angeles, Publ.SPIE, vol.1225, pp.164-172, 1990.

V.M. Borisov, O.B. Khristoforov, Yu.B. Kirykhin, S.G. Kuznetsov, Yu.Yu. Stepanov, A.Yu. Vinokhodov "The Kilowatt Range High-Repetition-Rate Excimer Lasers", Invited report on the International Congress on Optical Science and Engineering 11-15 March 1991 The Hague, The Netherlands. Publ. SPIE, vol. 1503, "Excimer Laser and Applications III", pp. 40-47, 1991.

V.M. Borisov, A.A. Dmitriev, O.B. Khristoforov A.V. Prokof'ev, "Conditions for the Excitation of a Wide-Aperture XeCl Laser with an Average Output Radiation Power of 1 kW", Sov. J. Quantum Electronics, vol.25, No 5, pp.408-410, 1995.

V.M. Borisov, O.B. Khristoforov, Yu.B. Kirykhin, A.Yu. Vinokhodov, A.I. Demin, A.V. Dem'yanov "Theoretical and experimental investigations of the 1 kW XeCl laser with UV pre-ionization" Proc. SPIE Gas and Chemical Lasers and Applications II, vol.2987, pp.94-104, 1997.

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