Creation of first-rate manufacturing department for production of paratellurite ( α-TeO2) crystals and

acoustooptic elements on this basis

LLC «GRAVITON» Tver, RUSSIA

Our products

The enterprise is aimed at the production of paratellurite single crystals by the method of Czochralsky and fabrication of acoustooptic components from the obtained crystals.

The production includes: growth of crystal boules; X-ray orientation of the boules; cutting and preparation of optical element workpieces; optical polishing and preparation of optical elements.

The production of paratellurite single crystals can be converted and complemented by the production of other technically important crystals such as lithium niobate, calcium molybdate, lead tungstate, etc. , which are also based on the Czochralsky method of growth.

Uniquely large perfect paratellurite crystals

Elements (light-sound waveguides) of paratellurite for

all types of acoustooptic

devices

Technology of paratellurite processing (orientation→ cutting→ grinding → polishing

Technology of paratellurite

crystal growth

Working principle of acoustooptic

devices

Our market Domestic and foreign producers of acoustooptic, optical and laser instruments on the base of paratellurite

At the moment the market is not saturated!

Production increase of AO devices on the base of paratellurite in Russia

World prices increase for 1 cm3 of raw paratellurite crystals

• “Elent A” (Ukraine, Dnepropetrovsk)• SISSAK(China)

Main competitors at the moment

Potential customers in RF and abroad:• NTO IRE-Polus (Fryazino, RF)• Centre of Laser tTechnologies (St-

Petersburg, RF)• LLC “Laser Centre (Moscow, RF)• Company Nano Lab (St-Petersburg, RF) • “Sigma-Optic Plus” LTD (Zelenograd,

RF))• FGUP NPO “Polus” (Moscow, RF)• FGUP NPO “Astrofizika” (Moscow,

RF)• NTC Akustooptiki MISIS (Moscow,

RF)• Ryazansky priborny zavod (Ryazan,

RF)• A & A (France)• RAYLASE AG (Germany)• LLC “NPP Lazerit”) (Ukraine)• Brimrose Corp (USA)• Newport (USA)• Tobin (Japan)

Advantages of the products of LLC “Graviton”»• Large size of the crystals• Uniquely low defect densities• Perfect optical uniformity• Perfect processing of optical surfaces• Availability of patents and know-how

Kaplunov I.A.• Succeeding director of several MIP, organized together

with several institutes of higher education oriented on the production of optical crystals

• Author of 18 patents and 150 scientific papers related Автор 18 изобретений и 150 научных работ, related to the growth and study of crystals

• Doctor of Sci. (Techn.), Head of chair of applied physics, Vice-rector on scientific and innovation activity of Tver State University

• Widely known as an expert in the field of germanium single crystal production and optical crystal properties

Kolesnikov A.I. • Specialist with 25-year experience in conducting a

number of scientific and commercial projects related to the growth and usage of paratellurite crystals

• Well known by his scientific papers on the problems of light scattering and absorption in crystals

• Author of 14 patents and 150 papers on the problems of crystal growth

• Candidate of Sci. (Phys.-Math.), dozent of Chair of applied physics of Tver State University.

Grechishkin R.M. • Specialist with 30-year experience in materials science

and scientific instrumentation, with a special emphasis on domain structure and magnetooptics of magnetic crystals and multiferroics , including quality control of optical materials.

• Supervisor of 8 succesfully defended PhD studies, author of 14 patents and more than 50 peer reviewed papers. Leader of numerous projects supported by international and domestic funds, including RFBR (Russian Foundation for Basic Research). Candidate of Sci. (Phys.-Math.), Professor of Chair of applied physics of Tver State University.

Tretiakov S.A. • Specialist in the methods of crystal growth.• Author of 20 papers, know-how and computer

programs related to the properties of optical crystals. Senior teacher of the Chair of applied physics of the Tver State University

Among other participants of the team are qualified specialists having experience in technical, administrative and commercial activity, including enthusiastic young people below 30 having pretentious plans to launch into business.

Main participants

Achievements of the team in the last 4 years (2009-2012)• Organization of small innovation enterprise “Graviton” (supported by the Foundation of

promotion for the development of small enterprises in the field of science and engineering) • Organization of small innovation enterprise “Fotonika”• Getting support from the Foundation of promotion investments to the subjects of small

and average entrepreneurship in scientific-technical and technological spheres of the Tver region “Start-up Fund”

• Realization of economical contracts and grants with a total of $800,000• Preparation and shipping to the customers of paratellurite elements for a number of

acoustooptic devices including those for unique domestic and international projects GLONASS, Mars-Express and Venus-Express.

Required investment

Three growth units$ 1.300.000-1.600.000 Crucibles

$ 200.000

Raw materials – tellurium dioxide

$ 600.000

Accommodation$ 400.000

Advertisement, promotion into the market

$ 200.000

Investment$ 2.700.000 – 3.000.000

Planned parameters:• Cost recovery - 4-5 years• Price for 1 cm3 of raw paratellurite crystal before processing – $60-120• Profitability – 35-50%• Annual production – 40-50 kg