Unidirectional laser emission from π-conjugated polymer microcavities with broken symmetry

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dc.citation.issueNumber16en_US
dc.citation.volumeNumber90en_US
dc.contributor.authorTulek, A.en_US
dc.contributor.authorVardeny, Z.V.en_US
dc.date.accessioned2016-02-08T10:14:34Z
dc.date.available2016-02-08T10:14:34Z
dc.date.issued2007en_US
dc.departmentDepartment of Physicsen_US
dc.description.abstractWe report unidirectional laser emission from π-conjugated polymer microcavities with broken symmetry geometries such as spiral and microdisk containing a "line defect," in comparison with plain microdisk cavity having isotropic emission. We found that the laser emission directionality contrast ratio is 8-10 and far field lateral divergence angle is 12°-15° for both broken symmetry geometries, with no significant increase in the laser threshold intensity. Fourier transform analysis of the laser emission spectra shows that unlike microdisks with line defect, the variation of light trajectories in the spiral microcavities leads to less defined laser modes. © 2007 American Institute of Physics.en_US
dc.identifier.doi10.1063/1.2723078en_US
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/11693/23483
dc.language.isoEnglishen_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.2723078en_US
dc.source.titleApplied Physics Lettersen_US
dc.subjectBroken symmetryen_US
dc.subjectLaser emission spectraen_US
dc.subjectLateral divergence angleen_US
dc.subjectLine defecten_US
dc.subjectConjugated polymersen_US
dc.subjectEmission spectroscopyen_US
dc.subjectFourier transformsen_US
dc.subjectLaser modesen_US
dc.subjectLaser radiationen_US
dc.subjectThreshold current densityen_US
dc.subjectMicrocavitiesen_US
dc.titleUnidirectional laser emission from π-conjugated polymer microcavities with broken symmetryen_US
dc.typeArticleen_US

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