Nonlinear spectrum effect on the coherent control of molecular systems

dc.creatorFERREIRA, P. H. D.
dc.creatorVIVAS, M. G.
dc.creatorSILVA, D. L.
dc.creatorMISOGUTI, Lino
dc.creatorFENG, K.
dc.creatorBU, X. R.
dc.creatorMENDONCA, Cleber Renato
dc.date.accessioned2012-10-20T04:16:06Z
dc.date.accessioned2018-07-04T15:42:09Z
dc.date.available2012-10-20T04:16:06Z
dc.date.available2018-07-04T15:42:09Z
dc.date.created2012-10-20T04:16:06Z
dc.date.issued2011
dc.identifierOPTICS COMMUNICATIONS, v.284, n.13, p.3433-3436, 2011
dc.identifier0030-4018
dc.identifierhttp://producao.usp.br/handle/BDPI/29710
dc.identifier10.1016/j.optcom.2011.03.022
dc.identifierhttp://dx.doi.org/10.1016/j.optcom.2011.03.022
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1626350
dc.description.abstractThis work demonstrates that the detuning of the fs-laser spectrum from the two-photon absorption band of organic materials can be used to reach further control of the two-photon absorption by pulse spectral phase manipulation. We investigate the coherent control of the two-photon absorption in imidazole-thiophene core compounds presenting distinct two-photon absorption spectra. The coherent control, performed using pulse phase shaping and genetic algorithm, exhibited different growth rates for each sample. Such distinct trends were explained by calculating the two-photon absorption probability considering the intrapulse interference mechanism, taking into account the two-photon absorption spectrum of the samples. Our results indicate that tuning the relative position between the nonlinear absorption and the pulse spectrum can be used as a novel strategy to optimize the two-photon absorption in broadband molecular systems. (C) 2011 Elsevier B.V. All rights reserved.
dc.languageeng
dc.publisherELSEVIER SCIENCE BV
dc.relationOptics Communications
dc.rightsCopyright ELSEVIER SCIENCE BV
dc.rightsrestrictedAccess
dc.subjectTwo-photon absorption
dc.subjectCoherent control
dc.subjectUltrashort pulses
dc.subjectOrganic materials
dc.titleNonlinear spectrum effect on the coherent control of molecular systems
dc.typeArtículos de revistas


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