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Use of continuous-wave illumination for two-photon three-dimensional optical bit data storage in a photobleaching polymer

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Abstract

We show that a continuous-wave laser beam at an infrared wavelength of 800 nm can be used for two-photon three-dimensional bit data storage in a photobleaching polymer. We successfully demonstrate recording and reading of six layers of data bits with a transverse bit separation of 4.3 μm and an axial layer separation of 20 μm. This result leads to a three-dimensional bit density of approximately 3 Gbits/cm3.

© 1999 Optical Society of America

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