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19 Aug 2002

Volume 81, Issue 8, pp. 1369-1534

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Long-range electron transfer and electronic transport through macromolecules

Natalya Zimbovskaya and Godfrey Gumbs

Appl. Phys. Lett. 81, 1518 (2002); http://dx.doi.org/10.1063/1.1502004 (3 pages) | Cited 8 times

Online Publication Date: 9 August 2002

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A theory of electrical transport through molecular wires is used to estimate the electronic factor in the intramolecular electron transfer in porphyrin-nitrobenzene supermolecules, and to analyze its structure. The chosen molecules have complex donor and acceptor configurations, and relatively simple structure of the bridge, which enables us to concentrate our studies on the donor/acceptor coupling to the bridge. We present analytical and numerical results concerning the effect of donor/acceptor coupling to the bridge on the electron transfer process in molecules with complex donor/acceptor subsystems. © 2002 American Institute of Physics.
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72.20.Ee Mobility edges; hopping transport
72.80.Le Polymers; organic compounds (including organic semiconductors)
73.61.Ph Polymers; organic compounds
85.65.+h Molecular electronic devices
71.15.Ap Basis sets (LCAO, plane-wave, APW, etc.) and related methodology (scattering methods, ASA, linearized methods, etc.)

Effect on laser-ablation algorithms of reflection losses and nonnormal incidence on the anterior cornea

J. R. Jiménez, R. G. Anera, L. Jiménez del Barco, and E. Hita

Appl. Phys. Lett. 81, 1521 (2002); http://dx.doi.org/10.1063/1.1502192 (3 pages) | Cited 33 times

Online Publication Date: 9 August 2002

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In this paper, we provide an analytic expression for an adjustment factor in ablation algorithms for photorefractive laser surgery which take into account reflection losses and the nonnormal incidence on the cornea. We evaluate the influence of this factor on certain ocular parameters, calculating alterations in the radius of anterior cornea and corneal asphericity when we use the algorithm given by Munnerlyn’s paraxial formula. Our data indicate that this adjustment factor should be considered in the ablation algorithms that are currently being proposed in customized corneal ablation and that need great accuracy for the correction of eye aberrations. © 2002 American Institute of Physics.
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42.62.Be Biological and medical applications
42.66.-p Physiological optics
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