Results 321 to 330 of about 1,235,699 (372)
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Optics and Optical Instruments
American Journal of Physics, 1961By B. K. Johnson New Tork: Dover Publications Inc. London: Constable & Co. Pp. viii + 224. Price $1.65. This book is an unaltered republication under a new title of the second (1947) edition of the author's Practical Optics. It is difficult to see why the title has been changed; this is a practical handbook which might appeal most to amateurs or to ...
B. K. Johnson, Charles Williamson
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Quantum optics of soliton microcombs
Nature Photonics, 2021Soliton microcombs—phase-locked microcavity frequency combs—have become the foundation of several classical technologies in integrated photonics, including spectroscopy, LiDAR and optical computing. Despite the predicted multimode entanglement across the
M. Guidry +4 more
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Long-distance quantum communication with atomic ensembles and linear optics
Nature, 2001Quantum communication holds promise for absolutely secure transmission of secret messages and the faithful transfer of unknown quantum states. Photonic channels appear to be very attractive for the physical implementation of quantum communication ...
L. Duan, M. Lukin, I. Cirac, P. Zoller
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New England Journal of Medicine, 2001
Patients with signs and symptoms consistent with acute monosymptomatic optic neuritis should undergo evaluation with gadolinium-enhanced MRI of the brain and orbits to determine whether or not they are at high risk for the development of clinically definite multiple sclerosis (CDMS).
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Patients with signs and symptoms consistent with acute monosymptomatic optic neuritis should undergo evaluation with gadolinium-enhanced MRI of the brain and orbits to determine whether or not they are at high risk for the development of clinically definite multiple sclerosis (CDMS).
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Optical expanders with applications in optical computing
Applied Optics, 1993An optical system called the optical expander is described and investigated. The optical expander electro-optically expands an optical Boolean pattern encoded in d bits into an optical pattern of size N bits. It is assumed that d is equal to c log(2)N for some constant c, and each expanded pattern is orthogonal to the others.
J H, Reif, A, Yoshida
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Physical Optics, Wave Optics, and Fourier Optics
1991When any of the dimensions or sizes of the components in an optical system is on the order of wavelength, then the methods discussed under geometrical optics do not give the proper solution to the problem. For this case, we must start from Maxwell’s equations, and derive the wave equation from which the proper solution to this problem can be obtained.
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Journal of Microscopy, 1987
SUMMARYImage analysis methods are first classified into four groups of theories related to optics, after which the associate hypotheses, the structures, the laboratory equipment and the mathematical framework for one of them, better known by the term of morphological optics, are studied in detail.
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SUMMARYImage analysis methods are first classified into four groups of theories related to optics, after which the associate hypotheses, the structures, the laboratory equipment and the mathematical framework for one of them, better known by the term of morphological optics, are studied in detail.
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Fibre-optics and optical sensors in medicine
Medical & Biological Engineering & Computing, 1987A number of new optical techniques for both thein vivo identification of blood analytes and the measurement of physical properties of interest to the clinician have recently been developed. These optical transducers are based on glass or plastic fibres, fractions of a millimetre (100–250 μm) in diameter, as found in fibre-optic communication systems ...
M J, Martin +3 more
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