Defect-guided Airy beams in optically induced waveguide arrays

Lučić, Nemanja; Bokic, Bojana; Grujić, Dušan; Pantelić, Dejan; Jelenković, B. M.; Piper, Aleksandra; Jović, Dragana; Timotijević, Dejan V.

doi:10.1103/physreva.88.063815

Cited by 11 publications

(7 citation statements)

References 22 publications

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“…5(a)] the power guided in the defect site is significantly reduced and finally completely repelled. A similar behavior was reported earlier for one-dimensional Airy beams propagating in a waveguide array with defects [18], and it was predicted that it qualitatively agrees with the results in two dimensions.…”

Section: Airy Beam Propagation In Photonic Lattice With Differentsupporting

confidence: 89%

“…In contrast to a corresponding situation of one-dimensional Airy beams propagating in a waveguide array [18], here the localization of the two-dimensional Airy beams at the output strongly depends on the strength of the photonic lattice, which also can be seen at the right edge of Fig. 2(l).…”

Section: Two-dimensional Airy Beams In Photonic Latticesmentioning

confidence: 65%

“…Thus, one promising approach towards this goal is to tailor the transverse acceleration of two-dimensional optical Airy beams using photonic lattices. Recently, defect guided Airy beams in optically induced onedimensional waveguide arrays were observed [18]. Despite the fact that Airy beams have been subject to many research activities, the propagation of such accelerated beams inside a two-dimensional optically induced photonic lattice has only been studied numerically with an isotropic refractive index potential assumed [19].…”

Section: Introductionmentioning

confidence: 99%

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Control of Airy-beam self-acceleration by photonic lattices

et al. 2014

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We demonstrate control over the acceleration of two-dimensional Airy beams propagating in optically induced photonic lattices. Depending on the lattice strength, we observe a slowing-down and suppression of the selfacceleration of Airy beams, as well as a formation of discrete lattice beams. Moreover, we explore the effects of different artificial single-side defects on the propagation and acceleration. For positive defects, the localization of the Airy beam to the defect site is further enhanced, while for negative defects most of the power is repelled from this site.

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Section: Airy Beam Propagation In Photonic Lattice With Differentsupporting

confidence: 89%

Section: Two-dimensional Airy Beams In Photonic Latticesmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

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Control of Airy-beam self-acceleration by photonic lattices

et al. 2014

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“…While the potential of tailored light fields, especially Airy beams, is well recognized in these fields, they are also of significant importance for advances in discrete and nonlinear modern photonics. On the one hand, the influence of inhomogeneous refractive index potentials on Airy beams has been investigated theoretically to design the beam caustics [10][11][12], on the other hand it was experimentally demonstrated that a linear refractive index gradient or a photonic lattice can be used to control and compensate the Airy beam self-acceleration [13][14][15]. Another inventive idea shifts the perspective and uses two-dimensional Airy beams itself to optically induce light guiding structures for optical routing and switching of signals [16].…”

Section: Introductionmentioning

confidence: 99%

Soliton formation by decelerating interacting Airy beams

Diebel¹,

Bokic²,

Timotijević³

et al. 2015

Opt. Express

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We demonstrate a new type of soliton formation arising from the interaction of multiple two-dimensional Airy beams in a nonlinear medium. While in linear regime, interference effects of two or four spatially displaced Airy beams lead to accelerated intensity structures that can be used for optical induction of novel light guiding refractive index structures, the nonlinear cross-interaction between the Airy beams decelerates their bending and enables the formation of straight propagating solitary states. Our experimental results represent an intriguing combination of two fundamental effects, accelerated optical beams and nonlinearity, together enable novel mechanisms of soliton formation that will find applications in all-optical light localization and switching architectures. Our experimental results are supported by corresponding numerical simulations.

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“…So, when one lattice structure is altered, the propagation properties of optical Airy beams should be affected. Recently, Lučić et al reported that a finite Airy beam changes its trajectory and shape in optically induced waveguide arrays consisting of different kinds of defects [11]. Moreover, the propagation of Airy beams inside a two-dimensional optically induced photonic lattice had been numerically studied with an isotropic refractive index potential [12] and investigated both theoretically and experimentally with the lattices fabricated by optical induction in photorefractive strontium barium niobate [13].…”

Section: Introductionmentioning

confidence: 99%

Propagation of an Airy-Gaussian beam in defected photonic lattices

et al. 2017

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We investigate numerically that a finite Airy-Gaussian (AiG) beam varies its trajectory and shape in the defected photonic lattices. The propagation properties and beam self-bending are controlled with modulation depth and period of the photonic lattices, positive and negative defects, beam distribution factor and nonlinearity change. For positive defects, the pseudo-period oscillation and localization of the AiG beam may be formed under a certain condition, while the beam is diffused for negative defects. Moreover, the solitons may appear during the propagation process when the self-focusing nonlinearity is introduced.Comment: 15 pages, 8 figure

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Defect-guided Airy beams in optically induced waveguide arrays

Cited by 11 publications

References 22 publications

Control of Airy-beam self-acceleration by photonic lattices

Control of Airy-beam self-acceleration by photonic lattices

Soliton formation by decelerating interacting Airy beams

Propagation of an Airy-Gaussian beam in defected photonic lattices

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