Results 141 to 150 of about 1,084,194 (176)

THE DISPERSIVE OPTICAL MODEL

1992
The advantages of the dispersive optical model for the analysis of neutron interactions are described, and recent analyses reviewed.
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Optical rotatory dispersion of carotenoids

J. Chem. Soc. C, 1969
The o.r.d. curves of ca. 40 carotenoids have been measured, chiefly in dioxan, over the range 400–200 nm. The chromophore in all cases is a conjugated polyene system which is perturbed by one or two chiral end-groups. The curves are analysed in terms of the simple additivity of the effects of end-groups, and the absolute configurations of several ...
B. C. L. Weedon, J. Szabolcs, W. Klyne, Gábor Tóth, Gail Galasko, A. K. Mallams, W. P. Mose, P. M. Scopes, L. Bartlett   +8 more
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Precompensation for optical dispersion

SPIE Proceedings, 2005
Transport fiber deployed in metro and long-haul networks exhibit chromatic dispersion which if not addressed closes the receive eye. At 10Gbps line rates, dispersion management strategies are required to allow reaches to surpass their dispersion limited values. Several solutions exist which resolve this limitation. A survey of these is presented. Since
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Optical Dispersion in Zinc Oxide

Physica Status Solidi (a), 1983
Radio-frequency reactively-sputtered films of c-oriented polycrystalline zinc oxide exhibit optical dispersion which differs significantly from published data on single crystal material. A model is developed which satisfactorily describes the bulk material, including birefringence and temperature dependence of dispersion, based on empirical absorption ...
Cathy Foley, T.L. Tansley, D.F. Neely
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Dispersion management in optical networks

11th International Conference on Integrated Optics and Optical Fibre Communications. 23rd European Conference on Optical Communications IOOC-ECOC97, 1997
Transmission of 8-wavelength, 2.5 Gb/s signals on a 2215 km optical path through all three testbeds of the MONET New Jersey Network is reported. The system performance varies with the order of occurrence of high-dispersion and low-dispersion network segments, suggesting a need for careful network design even when the total dispersion in the network is ...
S. Patel, A.R. Chraplyvy, R.S. Vodhanel, L.D. Garrett, R.W. Tkach   +4 more
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Subwavelength Artificial Structures: Opening a New Era for Engineering Optics

Advances in Materials, 2018
In the past centuries, the scale of engineering optics has evolved toward two opposite directions: one is represented by giant telescopes with apertures larger than tens of meters and the other is the rapidly developing micro/nano‐optics and ...
Xiangang Luo
semanticscholar   +1 more source

Material dispersion in optical fibers

Applied Optics, 1979
A three-parameter description of optical fiber material dispersion is proposed which fits the available data and reveals the key roles played by bond length, lattice structure, chemical valence, average energy gap, and atomic mass. Using broadly applicable trends in electronic and phonon oscillator strengths, simple expressions are deduced for material
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Geometrical optics in dispersive media

Physics Letters A, 1977
Abstract We present a systematic derivation of Geometrical Optics in dispersive media from Maxwell's equation for the presence of charges and currents, by using the two-timing approximation technique. A propagation equation for the polarisation plane is also derived.
Anile A. M., PANTANO, Pietro Salvatore
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Optical Dispersion and the Structure of Solids

Physical Review Letters, 1969
A new energy parameter ${\mathcal{E}}_{d}$ is introduced to describe dispersion of the electronic dielectric constant. This dispersion energy is found to obey an extraordinarily simple empirical relation in the more than 50 ionic and covalent crystals for which reliable refractive-index dispersion data are available.
M. DiDomenico, S. H. Wemple
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Dispersion of optical and electro-optical coefficients in semiconductors

Journal of Physics C: Solid State Physics, 1970
Simple models based on the free-electron approximation are developed to describe linear and non-linear optical absorption and dispersion in cubic semiconductors. The resulting formulae are programmed to enable numerical results to be obtained, and these are shown to be in good agreement with experiment.
P A Page, H Pursey
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