[PDF]    http://dx.doi.org/10.3952/lithjphys.47101

Open access article / Atviros prieigos straipsnis

Lith. J. Phys. 47, 21–26 (2007)


THE INTERFERENCE OF HIGHER ORDER LAGUERRE–GAUSSIAN BEAMS
V. Pyragaitė, V. Smilgevičius, A. Stabinis, and V. Maslinskas
Department of Quantum Electronics, Vilnius University, Saulėtekio 9, LT-10222 Vilnius, Lithuania
E-mail: algirdas.stabinis@ff.vu.lt

Received 19 December 2006

A vorticity of the light eld created by interference of two parallel Laguerre–Gaussian vortex beams of topological charge n > 1 is analysed. It is demonstrated that the locations of the vortices present in the composite beam depend on the separation between two beams as well as on the phase shift and topological charge. The qualitative agreement between theoretical and experimental data was obtained.
Keywords: beam interference, optical vortex
PACS: 42.25.Hz, 42.60.Jf


AUKŠTESNĖS EILĖS LAGERO IR GAUSO PLUOŠTŲ INTERFERENCIJA
V. Pyragaitė, V. Smilgevičius, A. Stabinis, V. Maslinskas
Vilniaus universitetas, Vilnius, Lietuva

Nagrinėjama dviejų lygiagrečių Lagero ir Gauso (Laguerre–Gauss) sūkurinių topologinio krūvio n > 1 pluoštų interferencijos lauko sūkurinė sandara. Parodyta, kad sudėtiniame pluošte esančių sūkurių padėtys priklauso tiek nuo atstumo tarp pluoštų, tiek ir nuo fazių skirtumo bei topologinio krūvio. Gautas kokybinis teorinių ir eksperimentinių duomenų sutapimas.


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