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PHASE CONJUGATION OF TWISTED GAUSSIAN SCHELL MODEL BEAMS IN STIMULATED DOWN-CONVERSION

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dc.creatorGUSTAVO CAÑAS CARDONA
dc.date2021
dc.date.accessioned2025-01-10T15:26:06Z
dc.date.available2025-01-10T15:26:06Z
dc.date.issued2021
dc.description.abstractSTIMULATED PARAMETRIC DOWN-CONVERSION IS A NONLINEAR OPTICAL PROCESS THAT CAN BE USED FOR PHASE CONJUGATION AND FREQUENCY CONVERSION OF AN OPTICAL FIELD. A PRECISE DESCRIPTION OF THE OUTGOING STIMULATED FIELD HAS BEEN DEVELOPED FOR THE CASE WHERE THE INPUT PUMP AND SEED FIELDS ARE COHERENT. HOWEVER, PARTIALLY COHERENT BEAMS CAN HAVE INTERESTING AND IMPORTANT CHARACTERISTICS THAT ARE ABSENT IN COHERENT BEAMS. ONE EXAMPLE IS THE TWIST PHASE, A NOVEL OPTICAL PHASE THAT CAN APPEAR IN PARTIALLY COHERENT GAUSSIAN BEAMS AND GIVES RISE TO A NONZERO ORBITAL ANGULAR MOMENTUM. HERE, WE CONSIDER STIMULATED DOWN-CONVERSION FOR PARTIALLY COHERENT INPUT FIELDS. AS A CASE STUDY, WE USE TWISTED GAUSSIAN SCHELL-MODEL BEAMS AS THE SEED AND PUMP BEAMS IN STIMULATED PARAMETRIC DOWN-CONVERSION. IT IS SHOWN BOTH THEORETICALLY AND EXPERIMENTALLY THAT THE STIMULATED IDLER BEAM CAN BE WRITTEN AS A TWISTED GAUSSIAN SCHELL-MODEL BEAM, WHERE THE BEAM PARAMETERS ARE DETERMINED ENTIRELY BY THE SEED AND PUMP. WHEN THE PUMP BEAM IS COHERENT, THE TWIST PHASE OF THE IDLER IS THE CONJUGATE OF THAT OF THE SEED. THESE RESULTS COULD BE USEFUL FOR THE CORRECTION OF WAVEFRONT DISTORTION SUCH AS IN ATMOSPHERIC TURBULENCE IN OPTICAL COMMUNICATION CHANNELS, AND SYNTHESIS OF PARTIALLY COHERENT BEAMS.
dc.formatapplication/pdf
dc.identifier.doi10.1515/nanoph-2021-0502
dc.identifier.issn2192-8614
dc.identifier.issn2192-8606
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/11999
dc.languagespa
dc.publisherNanophotonics
dc.relation.uri10.1515/nanoph-2021-0502
dc.rightsPUBLICADA
dc.subjecttwisted Gaussian Schell-model
dc.subjecttwist phase
dc.subjectstimulated down-conversion
dc.subjectphase conjugation
dc.titlePHASE CONJUGATION OF TWISTED GAUSSIAN SCHELL MODEL BEAMS IN STIMULATED DOWN-CONVERSION
dc.title.alternativeCONJUGACIÓN DE FASE DE VIGAS RETORCIDAS DEL MODELO GAUSSIAN SCHELL EN CONVERSIÓN DESCENDENTE ESTIMULADA
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE FISICA
ubb.SedeCONCEPCIÓN
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