Wavelength and topological charge management along the axis of propagation of multichromatic non-diffracting beams

Dorrah, Ahmed H.; Zamboni‐Rached, Michel; Mojahedi, Mo

doi:10.1364/josab.36.001867

“…The concept of frozen waves was introduced in 2004 [11], where it was shown that one can generate stationary localized wave fields with a longitudinal intensity pattern that can assume any desired shape. Subsequently, more complex 3D control of optical fields was demonstrated [12,13]. The interference pattern of two coherent beams can generate a simple sinusoidal periodic pattern that can achieve the required quasi phase matching in a way similar to that of periodic poling.…”

Section: Introductionmentioning

confidence: 99%

Quasi phase matching using frozen waves without periodic poling

Alghannam

2023

Preprint

0

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In this article, we show that quasi-phase matching can be accomplished by manipulating one of the pump beams without any periodic poling. We analyze the simple case where one of the interacting beams have a periodic pattern and the others are assumed to be plane waves. We present comparisons of the efficiency of some nonlinear processes with quasi-phase matching achieved through our method and the conventional method. We demonstrate that some patterns of the pump beam can be more efficient than conventional periodic poling.

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“…The concept of frozen waves was introduced in 2004 [11], where it was shown that one can generate stationary localized wave fields with a longitudinal intensity pattern that can assume any desired shape. Subsequently, more complex 3D control of optical fields was demonstrated [12,13]. The interference pattern of two coherent beams can generate a simple sinusoidal periodic pattern that can achieve the required quasi phase matching in a way similar to that of periodic poling.…”

Section: Introductionmentioning

confidence: 99%

Quasi phase matching using frozen waves without periodic poling

Alghannam

2023

Preprint

0

View full text Add to dashboard Cite

In this article, we show that quasi-phase matching can be accomplished by manipulating one of the pump beams without any periodic poling. We analyze the simple case where one of the interacting beams have a periodic pattern and the others are assumed to be plane waves. We present comparisons of the efficiency of some nonlinear processes with quasi-phase matching achieved through our method and the conventional method. We demonstrate that some patterns of the pump beam can be more efficient than conventional periodic poling.

show abstract

“…Still, managing the wavelength-dependent orbital angular momentum state of a polychromatic light beam remains a difficult task that attracts recent interest under various perspectives (optical imaging, optical manipulation, ultrafast laser physics, structured lightmatter interactions), see for instance. [1][2][3][4][5][6] In particular, it has been proposed to use arrays of non-uniform pixels, each of them acting as a spin-orbit geometric phase spatial light modulator endowed with vortex shaping functionality for a given wavelength. 3 By doing so, multispectral management of the photon orbital angular momentum has been experimentally reported, however, with some limitations inherent to the use of localized liquid crystal umbilical defects.…”

mentioning

confidence: 99%

Spectral optical vortex modulation from geometric phase diamond metasurface arrays

Nassiri

¹

,

Seniutinas

²

,

Dávid

³

et al. 2021

Applied Physics Letters

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Agile management of the optical orbital angular momentum encompasses temporal, spatial, and spectral aspects that, once combined, offer new perspectives in our way to manipulate light. To date the spectral control is mainly limited to tunable operating wavelength and polychromatic capabilities. Recently, a multispectral approach has been proposed [Phys. Rev. Lett. 121, 213901 (2018)] to achieve independent orbital angular momentum state control on multiple spectral channels. Here we report on the design, fabrication and implementation of a solid-state multispectral approach that consists of arrays of optical diamond micro-metasurfaces. Obtained device exhibits superior performances with respect to the original attempt, both regarding the spectral vortex purity, the ability to deal with high photon flux, and the orbital angular momentum diversity across the spectrum. These results motivate further development of metasurface-based integrated spin-orbit photonics technologies.

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Wavelength and topological charge management along the axis of propagation of multichromatic non-diffracting beams

Cited by 12 publications

References 24 publications

Quasi phase matching using frozen waves without periodic poling

Quasi phase matching using frozen waves without periodic poling

Quasi phase matching using frozen waves without periodic poling

Spectral optical vortex modulation from geometric phase diamond metasurface arrays

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