Sapphire optical discs for long term data storage

Andriy A. Kryuchyn; Viacheslav V. Petrov; Semen M. Shanoilo; Anatoliy S. Lapchuk; Yevhenii M. Morozov

doi:10.1117/12.2060786

5 September 2014 Sapphire optical discs for long term data storage

Andriy A. Kryuchyn; Viacheslav V. Petrov; Semen M. Shanoilo; Anatoliy S. Lapchuk; Yevhenii M. Morozov

Author Affiliations +

Proceedings Volume 9201, Optical Data Storage 2014; 92010C (2014) https://doi.org/10.1117/12.2060786
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

Results of implementation of technical solution for long term data storage technology on the basis of single crystal sapphire are presented. The effect of birefringence on the distribution of the focused laser beam through a uniaxial birefringent medium having a vertical orientation of the optical axis is analyzed. An expression for the calculation of the geometric aberrations of the focused laser beam in single-crystal substrate of the optical disc has been presented. It is shown that the problem of data reading through a substrate of negative single crystal sapphire can be solved by using for reading a special optical system with a plate of positive single crystal materials. The experimental results confirm the efficiency of the proposed technical solution.

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Andriy A. Kryuchyn, Andriy A. Kryuchyn, Viacheslav V. Petrov, Viacheslav V. Petrov, Semen M. Shanoilo, Semen M. Shanoilo, Anatoliy S. Lapchuk, Anatoliy S. Lapchuk, Yevhenii M. Morozov, Yevhenii M. Morozov, } "Sapphire optical discs for long term data storage", Proc. SPIE 9201, Optical Data Storage 2014, 92010C (5 September 2014); doi: 10.1117/12.2060786; https://doi.org/10.1117/12.2060786

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