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dc.contributor.authorKoivurova, Matias
dc.contributor.authorDing, Chaoliang
dc.contributor.authorTurunen, Jari
dc.contributor.authorLiuzhan, Pan
dc.date.accessioned2018-05-17T12:48:00Z
dc.date.available2018-05-17T12:48:00Z
dc.date.issued2018
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/6623
dc.description.abstractWe investigate a class of isodiffracting pulsed beams, which are superpositions of transverse modes supported by spherical-mirror laser resonators. By employing modal weights that, for stationary light, produce a Gaussian Schell-model beam, we extend this standard model to pulsed beams. We first construct the two-frequency cross-spectral density function that characterizes the spatial coherence in the space-frequency domain. By assuming a power-exponential spectral profile, we then employ the generalized Wiener-Khintchine theorem for nonstationary light to derive the two-time mutual coherence function that describes the space-time coherence of the ensuing beams. The isodiffracting nature of the laser resonator modes permits all (paraxial-domain) calculations at any propagation distance to be performed analytically. Significant spatiotemporal coupling is revealed in subcycle, single-cycle, and few-cycle domains, where the partial spatial coherence also leads to reduced temporal coherence even though full spectral coherence is assumed.
dc.language.isoenglanti
dc.publisherAmerican Physical Society (APS)
dc.relation.ispartofseriesPhysical Review A
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevA.97.023825
dc.rightsAll rights reserved
dc.titlePartially coherent isodiffracting pulsed beams
dc.description.versionpublished version
dc.contributor.departmentDepartment of Physics and Mathematics, activities
uef.solecris.id52981710en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© American Physical Society
dc.relation.doi10.1103/PhysRevA.97.023825
dc.description.reviewstatuspeerReviewed
dc.format.pagerange023825
dc.relation.articlenumber023825
dc.relation.issn2469-9926
dc.relation.issue2
dc.relation.volume97
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessEi


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