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Time-resolved spatial profile of TEA CO_2 laser pulses: influence of the gas mixture and intracavity apertures

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dc.contributor.authorSerna Galán, Julio
dc.contributor.authorEncinas Sanz, Fernando
dc.contributor.authorMartínez Herrero, María Rosario
dc.contributor.authorMartín Mejías, Pedro
dc.date.accessioned2023-06-20T18:46:34Z
dc.date.available2023-06-20T18:46:34Z
dc.date.issued2001-07
dc.description© 2001 Optical Society of America. This work was supported by the Comisión Interministerial de Ciencia y Tecnología of Spain under project PB97-0295.
dc.description.abstractThe evolution of the intensity profile of transversely excited atmospheric CO_2 laser pulses is investigated within the intensity moment formalism. The beam quality factor M_2 is used to study the mode evolution. Attention is focused on the influence of both the gas mixture (N_2:CO_2:He) and the diameter of an intracavity diaphragm placed to attenuate higher-order modes. The degree of accuracy that can be attained by approximating the laser field amplitude by means of the lower-order terms of a Hermite-Gauss expansion is also analyzed. In particular, a bound for the truncation error is given in terms of two time-resolved spatial parameters, namely the beam width and the M_2 parameter.
dc.description.departmentDepto. de Óptica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipComisión Interministerial de Ciencia y Tecnología of Spain
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/21974
dc.identifier.doi10.1364/JOSAA.18.001734
dc.identifier.issn1084-7529
dc.identifier.officialurlhttp://dx.doi.org/10.1364/JOSAA.18.001734
dc.identifier.relatedurlhttp://www.opticsinfobase.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/58582
dc.issue.number7
dc.journal.titleJournal of The Optical Society Of America A-Optics Image Science and Vision
dc.language.isoeng
dc.page.final1740
dc.page.initial1734
dc.publisherOptical Society of America
dc.relation.projectIDPB97-0295
dc.rights.accessRightsopen access
dc.subject.cdu535
dc.subject.keywordPartially Coherent Beams
dc.subject.keywordParametric Characterization
dc.subject.keywordEvolution
dc.subject.keywordCO_2-Laser
dc.subject.keywordLight
dc.subject.ucmÓptica (Física)
dc.subject.unesco2209.19 Óptica Física
dc.titleTime-resolved spatial profile of TEA CO_2 laser pulses: influence of the gas mixture and intracavity apertures
dc.typejournal article
dc.volume.number18
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