Generation of the “perfect” optical vortex using a liquid-crystal spatial light modulator

Ostrovsky, Andrey S.; Rickenstorff-Parrao, Carolina; Arrizón, Víctor

doi:10.1364/ol.38.000534

Cited by 514 publications

(232 citation statements)

References 13 publications

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“…SLMs allow full spatial control over the phase directly, but amplitude control must be achieved indirectly. For instance one can use two SLMs in series to create any arbitrary field by exploiting polarisation optics to convert phase to amplitude information [11,12] and there are more advanced techniques, which can manipulate the amplitude and phase with only a single phase-only SLM [13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Comparison of beam generation techniques using a phase only spatial light modulator

Clark¹,

Offer²,

Franke‐Arnold³

et al. 2016

Opt. Express

116

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Abstract:Whether in art or for QR codes, images have proven to be both powerful and efficient carriers of information. Spatial light modulators allow an unprecedented level of control over the generation of optical fields by using digital holograms. There is no unique way of obtaining a desired light pattern however, leaving many competing methods for hologram generation. In this paper, we test six hologram generation techniques in the creation of a variety of modes as well as a photographic image: rating the methods according to obtained mode quality and power. All techniques compensate for a non-uniform mode profile of the input laser and incorporate amplitude scaling. We find that all methods perform well and stress the importance of appropriate spatial filtering. We expect these results to be of interest to those working in the contexts of microscopy, optical trapping or quantum image creation.

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Section: Introductionmentioning

confidence: 99%

Comparison of beam generation techniques using a phase only spatial light modulator

Clark¹,

Offer²,

Franke‐Arnold³

et al. 2016

Opt. Express

116

View full text Add to dashboard Cite

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“…In [1], a "perfect" optical vortex (POV) has been considered. Its radius is independent on the topological charge.…”

Section: Introductionmentioning

confidence: 99%

“…Its radius is independent on the topological charge. In [1], POVs are generated by using a phase optical element consisting of a set of concentric rings, the thickness of each of which approximates the delta function. In [2], POVs are generated by using a conical axicon and a spiral phase plate (SPP).…”

Section: Introductionmentioning

confidence: 99%

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Efficient generation of a perfect optical vortex by using a phase optical element

Kotlyar¹,

Kovalev²,

Porfirev³

2017

Collection of Selected Papers of the III International Conference on Information Technology and Nanotechnology

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We consider generation of a perfect optical vortex by three elements: (i) amplitude-phase element with its transmission being proportional to the Bessel function, (ii) optimal element with the transmission proportional to the sign of the Bessel function, and (3) helical axicon. Maximal intensity of light on the ring is shown to be achieved by using the optimal element. Thickness of the light ring generated by the axicon is approximately two times higher than that for other elements. For perfect optical vortices with the radius of several wavelengths we detect the range of topological charges, within which the ring radius is almost independent on them.

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“…4 Currently, generating such a complex wave-form is usually attained through modification of a conventional Hermite-Gaussian beam, on passage through suitably tailored optical elements. [5][6][7][8] However, principles have now emerged to circumvent such post-hoc arrangements. As will be discussed in section 2, the initial concept was based on excitonic emission from pre-excited nanofabricated circular arrays.…”

Section: Introductionmentioning

confidence: 99%

Nanoarrays for the generation of complex optical wave-forms

et al. 2014

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Light beams with unusual forms of wavefront offer a host of useful features to extend the repertoire of those developing new optical techniques. Complex, non-uniform wavefront structures offer a wide range of optomechanical applications, from microparticle rotation, traction and sorting, through to contactless microfluidic motors. Beams combining transverse nodal structures with orbital angular momentum, or vector beams with novel polarization profiles, also present new opportunities for imaging and the optical transmission of information, including quantum entanglement effects. Whilst there are numerous well-proven methods for generating light with complex wave-forms, most current methods work on the basis of modifying a conventional Hermite-Gaussian beam, by passage through suitably tailored optical elements. It has generally been considered impossible to directly generate wave-front structured beams either by spontaneous or stimulated emission from individual atoms, ions or molecules. However, newly emerged principles have shown that emitter arrays, cast in an appropriately specified geometry, can overcome the obstacles: one possibility is a construct based on the electronic excitation of nanofabricated circular arrays. Recent experimental work has extended this concept to a phase-imprinted ring of apertures holographically encoded in a diffractive mask, generated by a programmed spatial light modulator. These latest advances are potentially paving the way for creating new sources of structured light.

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Generation of the “perfect” optical vortex using a liquid-crystal spatial light modulator

Cited by 514 publications

References 13 publications

Comparison of beam generation techniques using a phase only spatial light modulator

Comparison of beam generation techniques using a phase only spatial light modulator

Efficient generation of a perfect optical vortex by using a phase optical element

Nanoarrays for the generation of complex optical wave-forms

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