photorefractive effect

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photorefractive effect

[‚fōd·ō·ri′frak·tiv i′fekt]
(optics)
An effect displayed by many electrooptic materials in which a change in the index of refraction is induced by the presence of light, and this change is retained for a time after the light exposure ceases.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
All patients with no history of another corneal surgery who underwent photorefractive surgery with excimer laser in the Virgilio Galvis Ophthalmological Center, and who achieved postoperative distance corrected visual acuity better than 20/40 and to whom corneal tomography with the Sirius[R] tomographer was performed at least ten weeks after the procedure, were included in the study.
Bazan, "Topical combination of NGF and DHA increases rabbit corneal nerve regeneration after photorefractive keratectomy," Investigative Ophthalmology & Visual Science, vol.
Garcia, "Ten years after photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK) for moderate to high myopia (controlmatched study)," British Journal of Ophthalmology, vol.
Kashyap, "Use of e-beam written, reactive ion etched, phase masks for the generation of novel photorefractive fibre gratings," Microelectronic Engineering, vol.
One year results of photorefractive keratectomy and laser in situ keratomileusis for myopia using a 213nm wavelength solid-state laser.
Among the topics are liquid gradient refractive index lenses, photorefractive polymers for three-dimensional display applications, optimal gene detection using conjugated polymers, polymer ion sensors based on intramolecular charge-transfer interactions, detecting explosives and metal ions using fluorescent polymers and their nanostructures, holographic polymer-dispersed liquid crystals: from materials and morphologies to applications, and polymer nanostructures through packing spheres.
For dopant mediated mechanisms such as thermal, order parameter and photorefractive effects (where the presence of a dc bias field is another factor to contend), we show only representative values from the literature where the nonlinear optical responses were observed in samples of reasonable (< 50%) absorption loss.