Search Results - "Agranat, A.J."

Percolation of polar nanoregions: A dynamic approach to the ferroelectric phase transition by Lerner, S.E., Ben Ishai, P., Agranat, A.J., Feldman, Y.

“…The percolative nature of the ferroelectric phase transition in a potassium tantalate niobate (KTN) crystal is studied using time domain dielectric…”
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Dielectric electrooptic gratings in potassium lithium tantalate niobate by Agranat, A.J., de Oliveira, C.E.M., Orr, G.

“…Volume phase gratings have been fabricated by controlled generation of periodic striations during the growth of copper doped potassium lithium tantalate…”
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Sub nanosecond electroholographic switching by Sapiens, N., Weissbrod, A., Agranat, A.J.

“…Electroholographic switching with rise-time of less than a nanosecond is henceforth demonstrated. The switching was done in theg 44 configurationin which the…”
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Unusual glass-like systems – relaxation dynamics of Cu + ions in ferroelectric KTN crystals by Ben Ishai, P., de Oliveira, C.E.M., Ryabov, Y., Agranat, A.J., Feldman, Yu

“…We present a broadband dielectric spectroscopy study of potassium tantalate niobate (KTN) crystals, doped with varying amounts of Cu ions. The dielectric…”
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Refractive index engineering of a tunable channel waveguide array by the He+ implantation in an electrooptic KLTN substrate by Gumennik, A., Perepelitsa, G., Israel, A., Agranat, A.J.

“…Measurements of an electrooptic tunability of a channel array waveguide, fabricated by ion implantations through a comb-like stopping mask, revealed that the…”
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Controlled composition modulation in potassium lithium tantalate niobate crystals grown by off-centered TSSG method by de Oliveira, C.E.M., Orr, G., Axelrold, N., Agranat, A.J.

“…Off-centered top-seeded solution growth (TSSG) method is demonstrated as an effective and simple way to generate controlled composition modulation in potassium…”
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Collisions and inhomogeneous forces between solitons of different dimensionality by DelRe, E., Trillo, S., Agranat, A.J.

“…Summary form only given. As opposed to previously reported results on interaction of solitons of the same dimensionality we investigate phenomenology…”
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Spin-glass behavior in nonlinear optical waves by Pierangeli, D., Jlammini, M, Tavani, A., Di Mei, F., Agranat, A.J., Zhang, L., Conti, C., DelRe, E.

“…We report the observation of replica symmetry breaking in optical wave propagation, a phenomenon that emerges from the interplay of disorder and nonlinearity…”
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Electroholographic tunable wavelength selective switch by Secundo, L., Bartal, G., Bitman, A., Sapiens, N., Segev, M., Agranat, A.J.

“…Electroholographic switches in which the applied field is perpendicular to the grating vector so that the Bragg condition is electrically tuned are presented…”
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Dielectric electrooptic diffraction gratings by Agranat, A.J., Orr, G., de Oliveira, C.E.M.

“…Non-volatile electroholographic diffraction gratings were fabricated by periodically modulating the composition of KLTN crystals. The gratings are manifested…”
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Conjugated Polymeric Composites for Holographic Storage by Levi, O., Shalom, S., Benjamin, I., Perepelitsa, G., Agranat, A.J., Neumann, R., Avny, Y., Davidov, D.

“…We report here on the fabrication and optimization of composites of conjugated polymer in Sol-Gel and PVA matrices. FTIR spectroscopy as well as other…”
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Electroholographic wavelength selective crossconnect by Agranat, A.J.

“…An active multidimensional 'drop filter' built of electroholographic (EH) wavelength selective switches is described schematically. The switches are arranged…”
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Ferroelectric domain gratings and Barkhausen spikes in potassium lithium tantalate niobate by Tong, Xiaolin, Yariv, Amnon, Zhang, Min, Agranat, Aharon J., Hofmeister, Rudolf, Leyva, Victor

“…The observation of Barkhausen current spikes during the recording of volume phase holograms in potassium lithium tantalate niobate is reported on. These spikes…”
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Full C-band tunable laser based on electroholgraphy in the g44 configuration by Sapiens, N., Bitman, A., Agranat, A.J.

“…An electrically tunable laser covering the entire C-band is presented. The laser tuning device is an electrohologram in the g44 configuration implemented in a…”
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Electroholographic switching devices and applications by Agranat, A.J.

“…Summary form only given. Electroholography (EH) is a wavelength selective optical switching method based on governing of the reconstruction process of volume…”
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Tunable fiber laser using electroholography by Sapiens, N., Agranat, A.J.

“…A tunable fiber laser composed of an EDFA ring resonator and an electroholographic switching element is presented. Tunability is accomplished by electric field…”
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Human skin as arrays of helical antennas in the millimeter and submillimeter wave range by Feldman, Y., Puzenko, A., Ben Ishai, P., Caduff, A., Agranat, A.J.

“…Experimental evidence is henceforth presented indicating that human skin can be regarded as an array of low Q antennas. It is shown that physiological…”
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Electro-optic switching through photorefractive needles by DelRe, E., Crosignani, B., Palange, E., Agranat, A.J.

“…We demonstrate electro-optic spatial two-dimensional mode switching in a bulk sample of potassium-lithium-tantalate-niobate, mediated by two photorefractive…”
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Channel waveguide formed by "One Shot" implantation of He+ ions by Ilan, H., Gumennik, A., Perepelitsa, G., Israel, A., Agranat, A.J.

“…Channel waveguide was fabricated in a KLTN crystal. The waveguide was produced by a selective implantation of He + ions into the crystal through a gold…”
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The electro magnetic response of human skin in the submillimeter wave range by Feldman, Y., Puzenko, A., Ben Ishai, P., Caduff, A., Agranat, A.J.

“…The phenomena of non thermal effects of extremely high frequency electromagnetic radiation on biological systems is explored. It is demonstrated that the…”
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