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Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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HOLOGRAPHIC FEMTOSECOND LASER PROCESSING AND THREE-DIMENSIONAL RECORDING IN BIOLOGICAL TISSUES

By Y. Hayasaki

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Abstract:
Data recording on biological tissues and prostheses with femtosecond laser processing for personal identification is demonstrated. The target materials are human fingernails (fingernail memory) and dental prostheses (dental memory). Because they have unexpected movements and individual three-dimensional shapes, the processing system is required an adaptive focusing and highthroughput recording capability. The adaptive focusing is performed with a target surface detection. The high throughput is realized by parallel laser processing based on a computer-generated hologram displayed on a spatial light modulator. Two-dimensional and threedimensional parallel laser processing of glass is demonstrated.

Citation:
Y. Hayasaki, "Holographic Femtosecond Laser Processing and Three-Dimensional Recording in Biological Tissues," Progress In Electromagnetics Research Letters, Vol. 2, 115-123, 2008.
doi:10.2528/PIERL07122808

References:
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