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dc.contributor.authorGhaemi-Dizicheh, Hamed
dc.contributor.authorSarisaman, Mustafa
dc.contributor.authorMostafazadeh, Ali
dc.date.accessioned2021-03-03T16:53:09Z
dc.date.available2021-03-03T16:53:09Z
dc.date.issued2017
dc.identifier.citationGhaemi-Dizicheh H., Mostafazadeh A., Sarisaman M., "Nonlinear spectral singularities and laser output intensity", JOURNAL OF OPTICS, cilt.19, sa.10, 2017
dc.identifier.issn2040-8978
dc.identifier.otherav_46c65d89-fc23-4f4c-b86e-a3a95e0c5731
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/51158
dc.identifier.urihttps://doi.org/10.1088/2040-8986/aa840b
dc.description.abstractThe mathematical notion of spectral singularity admits a description in terms of purely outgoing solutions of a corresponding linear wave equation. This leads to a nonlinear generalization of this notion for nonlinearities that are confined in space. We examine the nonlinear spectral singularities in arbitrary transverse electric (TE) and transverse magnetic (TM) modes of a mirrorless slab laser that involves a weak Kerr nonlinearity. This provides a computational scheme for the determination of the laser output intensity I for these modes. In particular, we offer an essentially mathematical derivation of the linear-dependence of I on the gain coefficient g and obtain an explicit analytic expression for its slope. This shows that if the real part eta of the refractive index of the slab does not exceed 3, there is a lower bound on the incidence angle theta below which lasing in both its TE and TM modes requires eta to be shifted by a small amount as g surpasses the threshold gain. Our results suggest that lasing in the oblique TM modes of the slab is forbidden if the incidence (emission) angle of the TM mode exceeds the Brewster's angle.
dc.language.isoeng
dc.subjectTemel Bilimler (SCI)
dc.subjectOPTİK
dc.subjectOptik
dc.subjectElektromanyetizma, Akustik, Isı Transferi, Klasik Mekanik ve Akışkanlar Dinamiği
dc.subjectFizik
dc.subjectTemel Bilimler
dc.titleNonlinear spectral singularities and laser output intensity
dc.typeMakale
dc.relation.journalJOURNAL OF OPTICS
dc.contributor.departmentKoç Üniversitesi , ,
dc.identifier.volume19
dc.identifier.issue10
dc.contributor.firstauthorID104460


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