Yehuda Braiman

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We present a numerical study of control of chaos in a model of a multimode Nd:YAG laser using periodic perturbations of accessible control parameters. We show that a small modulation of either the losses or the pump can eliminate chaos or make the system even more chaotic. Depending on the parameters of the perturbation, two qualitatively diierent periodic(More)
— We consider synchronization of coupled semiconductor lasers modeled by coupled Lang and Kobayashi equations. We first analyze decoupled laser stability, and then characterize synchronization conditions of coupled laser dynamics. We rigorously prove that the coupled system locally synchronizes to a limit cycle under the coupling topology of an undirected(More)
We explored a path of achieving high quality phase-locking of broad-area laser diode (BALD) array that operates at high electrical to optical power conversion efficiency (PCE). We found that (a) improving single transverse mode control for each individual BALD, (b) employing global Talbot optical coupling among diodes, and (c) enhancing strength of optical(More)
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: a b s t r a c t Manipulation of friction at the nanoscale has been traditionally(More)
This paper reports progress in the development of a quantum-dot array that can be operated at room temperature for carrying out nontrivial and innovative computations. We discuss the actual fabrication of 2-nm metal clusters to serve as the quantum dots, device architecture, device simulation, and the development of a computational model. Innovative and(More)
We report preliminary results on the feasibility of a compact source of high power and high intensity coherent radiation emitted from an array of semiconductor diode lasers via the injection of a controlled electromagnetic field into the cavity of each laser. The new source is expected to generate coherent radiation of the order of magnitude of 10 Watts and(More)
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