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Optical Bullet-holes in Semiconductors

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Abstract

Stable, robust two-dimensional spatial solitons could act as “bits” for parallel information storage and processing. We present analytic and numerical evidence for the existence of stable 2D soliton-like states in optically driven semiconductor cavities. We consider both free-carrier and excitonic nonlinearity, and use parameters appropriate to VCSEL structures. In output these solitons would appear as transparent disks on an absorbing background, formed by aiming a short pulse of light at the target location: hence our term “optical bullet-holes” (OBH) [1]. We demonstrate a self-correcting 2D OBH array memory based on this concept.

© 1996 Optical Society of America

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