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Quality-based optical routing protocol
SPIE Proceedings, 2003Optical networking, with its almost unlimited bandwidth, is the only technology that can support communication new applications with high demand for bandwidth such as remote visualization, teleimmersion, collaborative e-science etc. In the optical networks presently deployed, each link is optically isolated by transponders doing O/E/O conversions.
Arjan Durresi +4 more
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Intraocular lens optical quality: update 1979
American Intra-Ocular Implant Society Journal, 1980One hundred and twenty lenses from 12 manufacturers were randomly selected for optical studies using an optical bench. Resolution efficiency was measured with an Air Force target, and measurements of back focal length in air were used to calculate back focal length in aqueous.
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2010
A combination of extraordinary thermal, mechanical and optical properties places natural diamond in a class by itself among materials. Diamond is the only material that offers long wave infrared (8â14 I¼m) transmission along with great strength and resistance to thermal shock and erosion. Diamond is also an excellent window for microwave, visible and
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A combination of extraordinary thermal, mechanical and optical properties places natural diamond in a class by itself among materials. Diamond is the only material that offers long wave infrared (8â14 I¼m) transmission along with great strength and resistance to thermal shock and erosion. Diamond is also an excellent window for microwave, visible and
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High quality-factor optical resonators
Physica Scripta, 2014Various resonators are investigated for microwave photonic applications. Micro-sphere, disk and fiber ring resonators were designed, realized and characterized.
Henriet, Rémi +12 more
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Bio-optical water quality assessment
20171. The colour of the sea, i.e. its spectral reflectance, depends on the absorbing and scattering properties of substances in the water. 2. The main optical in-water constituents are chlorophyll a (Chl a), coloured dissolved organic matter (CDOM) and suspended particulate matter (SPM). 3.
Susanne Kratzer +2 more
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High Quality Magneto-Optical Disk
SPIE Proceedings, 1987The effect of the groove profile on the characteristic properties of a magneto-optical (MO) disk with a quadrilayer structure (A1N/GdTbFe/A1N/A1) prepared on a glass substrate was investigated, using a micro Kerr-effect measuring apparatus. Taking a diffraction effect into account, we have calculated the dependence of signal quality on the groove ...
A. Takahashi +4 more
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Fiber Optics VI Image Quality and Optical Insulation*†
Journal of the Optical Society of America, 1959The image quality of an uncoated fiber bundle is influenced by light leakage between neighboring fibers. The point-spread function due to light leakage between neighboring fibers is used to calculate the static and dynamic frequency response of an uninsulated fiber bundle.
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Image Quality and Optical Resolution
Optica Acta: International Journal of Optics, 1957A brief account is given of the reasons why the classical notion of resolving power fails to provide a satisfactory quality criterion of optical systems designed to form images of extended objects. The discussion indicates that a quantity here called the structural resolving power, which is formally identical with an assessment proposed independently ...
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Atmospheric optics, adaptive optics, telescope quality for interferometry
1999Whereas the basic theory of elasticity of solid bodies was already worked out before the twentieth century, understanding of the thermodynamic behaviour of large air masses has only become significant for telescope optics in the last 35 years. It is therefore logical and inevitable that the subject of telescope optics has reached a stage where the ...
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Optical instrumentation for quality assurance
Journal of Physics E: Scientific Instruments, 1986The advantages of using optical instrumentation for quality assurance and the practical problems which need to be overcome in the process of applying this technology in industry are discussed and reviewed. After a brief description of the basic methods used in the design of this type of instrument, typical systems using lasers, white light and infrared
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