Departmental Papers (ESE)

Document Type

Journal Article

Date of this Version

June 2007

Comments

© 2007 Optical Society of America. Reprinted from Optics Letters, Volume 32, Issue 11, June 2007, pages 1501-1503.

This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/abstract.cfm?URI=ol-32-11-1501 . Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Abstract

Our theoretical modelings and experimental observations illustrate that the equilibrium-state luminescence of electron-trapping materials (ETMs) can be controlled to produce either excitatory or inhibitory responses to the same optical stimulus. Because of this property, ETMs have a unique potential in optical realization of neurobiologically based parallel computations. As a classic example, we have controlled the equilibrium-state luminescence of a thin film of this stimulable storage phosphor to make it behave similarly to the receptive fields of sensory neurons in the mammalian visual system, which are responsible for early visual processing.

Keywords

information processing, optical data processing, optical neural systems

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Date Posted: 15 August 2007

This document has been peer reviewed.