Liquid crystal aberration compensation devices

Sjoerd Stallinga; Joris J. Vrehen; Jeroen Wals; Henk Stapert; Emile Verstegen

doi:10.1117/12.390521

6 July 2000 Liquid crystal aberration compensation devices

Sjoerd Stallinga, Joris J. Vrehen, Jeroen Wals, Henk Stapert, Emile Verstegen

Proceedings Volume 4081, Optical Storage and Optical Information Processing; (2000) https://doi.org/10.1117/12.390521
Event: Photonics Taiwan, 2000, Taipei, Taiwan

Abstract

The application of aberration compensation devices can support the trend to higher information densities in optical data storage. The information content of a disc may be increased while maintaining acceptable tolerance levels. For example, disc tilt dependence may require coma compensation, whereas double layer formats require spherical aberration compensation. Liquid crystals (LCs) can be successfully applied in such devices. The design of two practical implementations is discussed; a coma compensating LC-cell with special electrode-design for optimized tolerances w.r.t. decentering, and a lens made of photopolymerizable LC, which can be used to compensate for spherical aberration.

Citation Download Citation

Sjoerd Stallinga, Joris J. Vrehen, Jeroen Wals, Henk Stapert, and Emile Verstegen "Liquid crystal aberration compensation devices", Proc. SPIE 4081, Optical Storage and Optical Information Processing, (6 July 2000); https://doi.org/10.1117/12.390521

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