Enhanced Absorption And Electro-Optic Pockels Effect Of Electrostatically Self-Assembled Cdse Quantum Dots

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dc.contributorVirginia Techen
dc.contributor.authorZhang, F. J.en
dc.contributor.authorZhang, L. M.en
dc.contributor.authorWang, Y. X.en
dc.contributor.authorClaus, Richard O.en
dc.contributor.departmentElectrical and Computer Engineeringen
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessed2014-02-24en
dc.date.accessioned2014-04-04T15:12:15Zen
dc.date.available2014-04-04T15:12:15Zen
dc.date.issued2005-10-01en
dc.description.abstractThe spectrum and electro-optic properties of CdSe quantum dots are studied. Spectrum wavelength shifts that are due to the quantum size effect and to the electro-optic Stark effect are investigated. It is found that CdSe quantum dot-polymer composites formed by an electrostatic self-assembly (ESA) technique exhibit high internal electric fields. Using the second-order perturbation theory of the ls-ls energy shift (Stark effect), we estimate the internal field of the ESA film to be as high as 2.6 X 10(8) V/m. This value results in a much higher absorption coefficient and electro-optic coefficients for ESA films than for their bulk crystal counterparts or for spin-coated film samples. The relationships among unusual spectra, film structure, and high electro-optic response are analyzed. These results are useful both for understanding the physical mechanisms of semiconductor quantum dots and for developing high-performance photonic devices. (c) 2005 Optical Society of America.en
dc.description.sponsorshipU.S. Army Multidisciplinary University Research Initiative program DAAD19-02-1-0275en
dc.description.sponsorshipOptical Science and Engineering Research Center of Virginia Polytechnic Instituteen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationFajian Zhang, Liangmin Zhang, You-Xiong Wang, and Richard Claus, "Enhanced absorption and electro-optic Pockels effect of electrostatically self-assembled CdSe quantum dots," Appl. Opt. 44, 3969-3976 (2005). doi: 10.1364/ao.44.003969en
dc.identifier.doihttps://doi.org/10.1364/ao.44.003969en
dc.identifier.issn1559-128Xen
dc.identifier.urihttp://hdl.handle.net/10919/46894en
dc.identifier.urlhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-19-3969en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject2nd-harmonic generationen
dc.subjectSize dependenceen
dc.subjectDipole-momenten
dc.subjectNanocrystalen
dc.subjectFilmsen
dc.subjectPerspectiveen
dc.subjectCrystallitesen
dc.subjectStateen
dc.titleEnhanced Absorption And Electro-Optic Pockels Effect Of Electrostatically Self-Assembled Cdse Quantum Dotsen
dc.title.serialApplied Opticsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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