Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Patent
1984-05-09
1987-01-20
Cardillo, Raymond F.
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
369110, 360114, G11B 1100
Patent
active
046384707
ABSTRACT:
A system for providing a read signal from a magneto-optic medium wherein a non-rotated leaky beam splitter is utilized to provide both s and p components of the light reflected from the medium to a differential detector arrangement. The beam splitter, which may be of conventional construction and which has the reflected beam striking its medium-facing face at normal incidence, is operated in a leaky mode by utilizing it with a read beam having a wavelength differing from the wavelength for which the beam splitter was designed. One face of the beam splitter can be cut at a small angle off normal to prevent any p-polarized light from entering the differential detector arrangement directly from the light source.
REFERENCES:
patent: 3705395 (1972-12-01), Aagard et al.
patent: 3781905 (1973-12-01), Bernal et al.
patent: 4392722 (1983-07-01), Shirasaki
patent: 4409631 (1983-10-01), Matsumoto
patent: 4423495 (1983-12-01), Musha et al.
patent: 4426693 (1984-01-01), Satoh et al.
patent: 4429378 (1984-01-01), Sato
patent: 4451863 (1984-05-01), Yanagida et al.
patent: 4451913 (1984-05-01), Elliott
patent: 4466035 (1984-08-01), Connell et al.
patent: 4472748 (1984-09-01), Kato et al.
patent: 4549287 (1985-10-01), Hatano et al.
patent: 4558440 (1985-12-01), Tomita
G. A. N. Connell, D. Treves, R. Allen, M. Mansuripur, "Signal-to-Noise Ratio for Magneto-Optic Readout from Quadrilayer Structure", Applied Physics Letters, 4/15/83, vol. 42, No. 8, pp. 742-744.
R. P. Netterfield, "Practical Thin-Film Polarizing Beam-Splitters", Optica Acta, 1977, vol. 24, No. 1, pp. 69-79.
Connell G. A. Neville
Godwin Jimmy D.
Cardillo Raymond F.
Xerox Corporation
Young Wayne R.
Zalman Leonard
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