Results 291 to 300 of about 1,013,031 (328)
Public health system in Brazil and its analysis under the optics of Foucault biopoder: a descriptive
, 2017 Luis Alberto Côrtes
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Preliminary results of linear optics from orbit response in the CERN PSB
, 2013 Meghan McAteer +4 more
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Low-Cost 3D Printed Optics for Super-Resolution Multifocal Structured Illumination Microscopy
Christopher J +4 more
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Optically tunable optical filter
Applied Optics, 1995We experimentally demonstrate an optically tunable optical filter that uses photorefractive barium titanate. With our filter we implement a spectrum analyzer at 632.8 nm with a resolution of 1.2 nm. We simulate a wavelength-division multiplexing system by separating two semiconductor laser diodes, at 1560 nm and 1578 nm, with the same filter.
R T, James +3 more
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Proceedings of the IEEE, 1966
Recent advances in the field of nonlinear optical phenomena are reviewed with particular emphasis placed on such topics as parametric oscillation, self-focusing and trapping of laser beams, and stimulated Raman, Rayleigh, and Brillouin scattering.
R W, Minck, R W, Terhune, C C, Wang
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Recent advances in the field of nonlinear optical phenomena are reviewed with particular emphasis placed on such topics as parametric oscillation, self-focusing and trapping of laser beams, and stimulated Raman, Rayleigh, and Brillouin scattering.
R W, Minck, R W, Terhune, C C, Wang
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Optical doughnut for optical tweezers
Optics Letters, 2003We describe novel optical doughnuts for optical tweezers. With new phase functions, the proposed doughnut beams have dark cores in specified shapes. The technique can offer a simple method for creating a variety of beam shapes to match the trapped objects.
D W, Zhang, X C, Yuan
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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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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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A novel optical waveguide for integrated optics
IEEE Journal of Quantum Electronics, 1973A novel dielectric optical waveguide was made consisting of a guide pattern on a thin dielectric film. Almost all the power propagates in the thin film along the guide pattern. The existence of propagation modes of this waveguide was verified both theoretically and experimentally.
H, Furuta, H, Noda, A, Ihaya
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Neurologic Clinics, 2010
Optic neuritis usually presents with painful monocular vision loss in younger patients. Spontaneous improvement in vision occurs over weeks, and treatment with high-dose intravenous steroids increases the rate but not extent of visual recovery. Risk of progression to multiple sclerosis (MS) is largely dictated by baseline brain magnetic resonance ...
David, Clark +2 more
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Optic neuritis usually presents with painful monocular vision loss in younger patients. Spontaneous improvement in vision occurs over weeks, and treatment with high-dose intravenous steroids increases the rate but not extent of visual recovery. Risk of progression to multiple sclerosis (MS) is largely dictated by baseline brain magnetic resonance ...
David, Clark +2 more
openaire +2 more sources