Nonlinear physical optics with transversely patterned quasi-phase-matching gratings

Kurz, J.R.; Schober, Andrew; Hum, David S.; Saltzman, Ashley J.; Fejer, M. M.

doi:10.1109/cleo.2002.1034105

Cited by 7 publications

(7 citation statements)

References 5 publications

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“…Recently, a novel geometry based on the annular domain pattern has been suggested theoretically and studied experimentally. It has been shown that the annular geometry enables phasematched parametric processes with larger acceptance angle, simultaneous frequency conversion into a number of beams propagating at different directions [2,3], and second-harmonic beam shaping [4]. In these studies, the geometry of wave interaction was such that all beams propagate in the same plane which is also the plane of the structure's periodicity.…”

Section: Introductionmentioning

confidence: 99%

Generation of Bessel beams by parametric frequency doubling in annular nonlinear periodic structures

Saltiel¹,

Królikowski²,

Neshev³

et al. 2007

Opt. Express

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We analyze the second-harmonic generation in two-dimensional photonic structures with radially periodic domains created by poling of a nonlinear quadratic crystal. We demonstrate that the parametric conversion of the Gaussian fundamental beam propagating along the axis of the annular structure leads to the axial emission of the second-harmonic field in the form of the radially polarized first-order Bessel beam.

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Section: Introductionmentioning

confidence: 99%

Generation of Bessel beams by parametric frequency doubling in annular nonlinear periodic structures

Saltiel¹,

Królikowski²,

Neshev³

et al. 2007

Opt. Express

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“…More generally there is a need to produce poled patterns that are not strictly periodic such as chirped PPLN, superstructured PPLN, transversed pattern PPLN etc [8,9,10]. In all these cases the additional structure in real space provides additional functionality (e.g.…”

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confidence: 99%

Harmonic generation in a two-dimensional nonlinear quasi-crystal

et al. 2005

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Second harmonic generation in a two dimensional nonlinear quasi-crystal is demonstrated for the first time. Temperature and wavelength tuning of the crystal reveal the uniformity of the pattern while angle tuning reveals the dense nature of the crystal's Fourier spectrum. These results compare well with theoretical predictions showing the excellent uniformity of the crystal and suggest that more complicated "nonlinear holograms" should be possible.

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“…An alternative method to overcome these problems is to integrate the beam shaping process within the nonlinear crystal. In the past, in order to achieve the desired beam profile, the second-order nonlinear coefficient has been spatially modulated to manipulate the beam profile in a variety of examples such as focusing [2,3], steering [4] and shaping [5][6][7][8]. However, this approach holds several drawbacks; in particular, the difficulty to achieve efficient phase matching along with shaping of the beam in two transverse dimensions.…”

Section: Introductionmentioning

confidence: 99%

Shaping the fundamental and second harmonic beams using patterned facets in lithium triborate

Singh

Shiloh

Arie

2018

Opt. Mater. Express

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We demonstrate a new method for high resolution patterning of the facets of a nonlinear crystal, LiB 3 O 5 , based on lithographic exposure of its anti-reflection coating layer, followed by ion beam milling. This crystal is attractive for high intensity frequency conversion due to its high damage threshold. We demonstrate an application of our patterning method for shaping the fundamental beam, as well as the second harmonic beam that is generated in the crystal. We fabricated six different phase masks that generated the following beam profiles in both wavelengths: on-and off-axis high order Hermite-Gaussian beam, Airy beam, vortex beam, lens and a periodic Bragg grating. Such an optical device opens up new possibilities for compact beam shaping in high power nonlinear interaction in a broad range of frequencies.

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Nonlinear physical optics with transversely patterned quasi-phase-matching gratings

Cited by 7 publications

References 5 publications

Generation of Bessel beams by parametric frequency doubling in annular nonlinear periodic structures

Generation of Bessel beams by parametric frequency doubling in annular nonlinear periodic structures

Harmonic generation in a two-dimensional nonlinear quasi-crystal

Shaping the fundamental and second harmonic beams using patterned facets in lithium triborate

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