Validity of Two-Level Approximation for Two-Photon Absorption in the Lowest Electronic Transition of Dipolar Molecules

dc.contributor.advisorRebane, Aleksandr
dc.contributor.authorMikhailov, Alexandr
dc.date.accessioned2013-03-05T19:03:06Z
dc.date.available2013-03-05T19:03:06Z
dc.date.issued2013-03
dc.descriptionAbstract Onlyen_US
dc.description.abstractIn dipolar molecules two-photon absorption (2PA) tensor contains a term proportional to the change of permanent dipole moments between the final and ground states. We employ simple asymmetrical potential well models to investigate the contribution of this two-level term relative to other higher-level contributions. Our simple model of dipolar molecules consists in placing N=10 π-electrons in a one-dimensional infinite potential well of width A with asymmetric floor. We study different model potentials for which analytical expressions for the 2PA amplitudes can be obtained. These include linear slope, rectangular step, and antisymmetric sinusoidal potentials. We solve the corresponding Schrödinger equation both analytically and numerically, and show that for a reasonable values of the potential amplitudes (ΔV not larger than 5E1(0) = 5π22/ 2mA2), the “two-level” contribution to the 2PA cross section is at least an order of magnitude larger than the contribution from all other terms.en_US
dc.identifier.urihttps://scholarworks.montana.edu/handle/1/486
dc.language.isoen_USen_US
dc.titleValidity of Two-Level Approximation for Two-Photon Absorption in the Lowest Electronic Transition of Dipolar Moleculesen_US
dc.typePresentationen_US
mus.citation.conferenceMSU Student Research Celebration 2012
mus.relation.collegeCollege of Letters & Science
mus.relation.departmentPhysics.en_US
mus.relation.universityMontana State University - Bozemanen_US

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