Publications by Author: Bacterial-biosensor

2000
Gabby Bitton, Yuri Feldman, and Aharon J Agranat. 2000. “Dielectric properties of K 1−x , Li x , Ta l−y , Nby 03 crystals..” Ferroelectrics, 239, 1, Pp. 213-224. Publisher's Version
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1998
G Bitton, M Razvag, and Aharon J Agranat. 1998. “Formation of Metastable Ferroelectric Clusters in K1-XLiXTa1-YNbYO3:Cu, V at the Paraelectric Phase.” Phys. Rev. B , 58, 9, Pp. 5282-5286.
B Pessach, Eli Refaeli, and Aharon J Agranat. 1998. “Investigation of the holographic storage capacity of paraelectric KLTN.” Optics Letters , 23, 4/15, Pp. 642-644.
Eugenio DelRe, Mario Tamburrini, Mordechai Segev, Eli Refaeli, and Aharon J Agranat. 1998. “Two-dimensional photorefractive spatial solitons in centrosymmetric paraelectric potassium–lithium–tantalate–niobate..” Applied Physics Letters, 73, 1. Publisher's Version Abstract

We report the observation of steady-state two-dimensional photorefractive self-trapping and screening spatial soliton formation in a sample of potassium–lithium–tantalate–niobate in the centrosymmetric paraelectric phase. © 1998 American Institute of Physics. [ABSTRACT FROM AUTHOR]Copyright of Applied Physics Letters is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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1997
Xiaolin Tong, Min Zhang, Amnon Yariv, and Aharon J Agranat. 1997. “Copper, hydrogen, and titanium incorporation in potassium lithium tantalate niobate single crystals..” Applied Physics Letters, 70, 13, Pp. 1688. Publisher's Version Abstract
Analyzes the model proposed for the diffusion of copper, hydrogen and titanium through potassium lithium tantalate niobate crystals. Occupation of potassium/lithium vacant sites by copper and hydrogen ions; Effect of titanium on the ability of hydrogen ions to stay at the sites; Reduction in the hydrogen ion concentration.
4319805
Xiaolin Tong, Amnon Yariv, Min Zhang, Aharon J Agranat, Rudolf Hofmeister, and Victor Leyva. 1997. “Ferroelectric domain gratings and Barkhausen spikes in potassium lithium tantalate niobate..” Applied Physics Letters, 70, 17, Pp. 2241. Publisher's Version Abstract
Examines the formation of Barkhausen spikes in volume phase holograms of potassium lithium tantalate niobate crystals. Effect of ferroelectric domain reversal induced by photorefractive space charge fields; Measurement of displacement currents; Changes in diffraction efficiency during a single macrodomain switching.
4289619
1996
Offer Schwartzglass and Aharon J Agranat. 1996. “Letter: VLSI implementation of pulsating neural networks.” Neurocomputing, 10, Financial Applications, Pp. 405 - 413. Publisher's Version Abstract
We describe a generic approach for realizing networks of pulsating neurons based on charge pumping of interface states situated in the channel of MOS transistors. Two basic building blocks will be described: the pulse activated charge pumping (PSCP) synapse, and the charge sensitive oscillator (CSO). The PSCP synapse which operates as either a short or a long term memory device which produces a charge packet proportional to the number of pulses applied to its input, will be described in detail together with experimental results demonstrating its capability. The CSO circuit which is a charge controlled oscillator will be described together with simulations of its output frequency dependence on its input voltage, and the relation between the temporal dependence of output waveform on its input charge.
Accession Number: 0925231296001385; Author: Schwartzglass, Offer (a); Author: Agranat, Aharon J. (∗, a); Affiliation: Division of Applied Physics and the Interdisciplinary Center for Neural Computation, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; Number of Pages: 9; Language: English;
1993
Aharon J Agranat. 1993. “Electro-holographic artificial neural networks.” Physica A: Statistical Mechanics and its Applications, 200, Pp. 608 - 612. Publisher's Version Abstract
A new approach for implementing artificial neural networks (ANNs), based ona novel concept in volume holographic storage-electroholography (EH)-is described. EH is based on the use of paraelectric photorefractive crystals in which the photorefractive mechanism is created in the paraelectric phase. Thus the quadratic electrooptic effect is used to transform the information carrying space charge fields into birefringence gratings, and therefore the diffraction efficiency is governed by an external electric field. This principle enables the construction of a page oriented architecture in which each neuron is implemented as a local electronic circuit, governing the diffraction efficiency of a small volume hologram representing the axon of the neuron. The EH approach is expected to enable the construction of networks with 105−106 neurons, each with 103−104 synapses.
Accession Number: 037843719390566M; Author: Agranat, Aharon J.; Affiliation: Division of Applied Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel; Number of Pages: 5; Language: English;
O Schwartzglass, J Shappir, and Aharon J Agranat. 1993. “The Pulse Stimulated Charge Pumping Synapse.” Electronics Letters, 29, Pp. 1433-1435.

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