Investigation of spatiotemporal optical beam reallocation

Moshonas, N; Kominis, Y; Efremidis, N; Manousakis, M; Hizanidis, K

dc.contributor.author	Moshonas, N	en
dc.contributor.author	Kominis, Y	en
dc.contributor.author	Efremidis, N	en
dc.contributor.author	Manousakis, M	en
dc.contributor.author	Hizanidis, K	en
dc.date.accessioned	2014-03-01T02:51:07Z
dc.date.available	2014-03-01T02:51:07Z
dc.date.issued	2007	en
dc.identifier.issn	0277786X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35375
dc.subject	Beam interaction	en
dc.subject	Bidispersive materials	en
dc.subject	Frequency shifting	en
dc.subject	Kerr effect	en
dc.subject	Nonlinear optics	en
dc.subject.other	Frequency shift keying	en
dc.subject.other	Gaussian beams	en
dc.subject.other	Numerical methods	en
dc.subject.other	Optical Kerr effect	en
dc.subject.other	Beam interaction	en
dc.subject.other	Bidispersive materials	en
dc.subject.other	Nonlinear optics	en
dc.title	Investigation of spatiotemporal optical beam reallocation	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1117/12.722722	en
heal.identifier.secondary	http://dx.doi.org/10.1117/12.722722	en
heal.identifier.secondary	65821F	en
heal.publicationDate	2007	en
heal.abstract	In the current work we study beam interaction in media with normal dispersion and self focusing nonlinearity, ruled by the two dimensional NLSE. The circular or elliptical Gaussian beams propagate over a continuous wave background (CW) which raises the X-like gain profile of Modulational Instability. That, along with self-focusing nonlinearity, can lead the beams to collision along the spatial dimension, then to fusion and finally to splitting and creation of two major filaments that move along the temporal dimension. Thus, the energy and momentum of the beams are effectively "" reallocated"" from one dimension to the other. By conducting primarily a numerical study, we reveal the relation of the resulting filaments to the interacting beams and the characteristics of the CW. Analytical description of this relation is also attempted and a new mechanism of beam-control is proposed. Explanation of the physical phenomena involved is also offered.	en
heal.journalName	Proceedings of SPIE - The International Society for Optical Engineering	en
dc.identifier.doi	10.1117/12.722722	en
dc.identifier.volume	6582	en