Methods of varying optical properties, optical devices, informat

Details Methods of varying optical properties, optical devices, informat Methods of varying optical properties, optical devices, informat

1992-06-18

1995-05-30

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

3692751, 369284, 369288, 3461351, 430945, G11B 724

Patent

active

054208459

ABSTRACT:
High density optical information recording even at room temperature is achieved by control of the diameter of crystalline portions exhibiting quantum size effects of fine semiconductor particles distributed in a dielectric matrix, using the non-crystalline to crystalline phase transition of the fine particles. The quantum size effects mean that the optical properties of the medium depend on the diameter of the crystalline portions. Various methods of recording, reproducing and erasing information using this optical recording medium are possible. The invention is applicable to other optical devices.

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patent: 4757492 (1988-07-01), Fukushima et al.
patent: 4969141 (1990-11-01), Takaoka et al.
patent: 5103284 (1992-04-01), Ovshinsky et al.
A. I. Ekimov, et al., "Quantum Size Effect in Semiconductor Microcrystals", Solid State Communications, vol. 56, No. 11, 1985, pp. 921-924.
U.S. Pat. No. 4,101,976 365/119, Jul. 1978.
Document, "Solid State Communication" vol. 56, No. 11, pp. 921-924 (1985).
Document "Oyo Butsuri" vol. 55, No. 3, pp. 325-335 (1990) (no translation).

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