Generation of flower high-order Poincaré sphere laser beams from a spatial light modulator

Lü, Ting; Huang, Teng De; Wang, J. G.; Wang, L. W.; Alfano, R. R.

doi:10.1038/srep39657

Cited by 24 publications

(11 citation statements)

References 24 publications

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“…3 ), such that |〈 ψ | ϕ 〉| 2 = 1/ d with d = 4. Both mode sets can be generated by manipulating the dynamic or geometric phase of light 8 , 28 – 30 . Here we employ geometric phase control through a combination of q -plates 31 , 32 and wave plates to create all vector modes in the four dimensional subspace defined by a fixed .…”

Section: Resultsmentioning

confidence: 99%

A deterministic detector for vector vortex states

Ndagano

Nape

Perez-García

et al. 2017

Sci Rep

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Encoding information in high-dimensional degrees of freedom of photons has led to new avenues in various quantum protocols such as communication and information processing. Yet to fully benefit from the increase in dimension requires a deterministic detection system, e.g., to reduce dimension dependent photon loss in quantum key distribution. Recently, there has been a growing interest in using vector vortex modes, spatial modes of light with entangled degrees of freedom, as a basis for encoding information. However, there is at present no method to detect these non-separable states in a deterministic manner, negating the benefit of the larger state space. Here we present a method to deterministically detect single photon states in a four dimensional space spanned by vector vortex modes with entangled polarisation and orbital angular momentum degrees of freedom. We demonstrate our detection system with vector vortex modes from the || = 1 and || = 10 subspaces using classical and weak coherent states and find excellent detection fidelities for both pure and superposition vector states. This work opens the possibility to increase the dimensionality of the state-space used for encoding information while maintaining deterministic detection and will be invaluable for long distance classical and quantum communication.

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Section: Resultsmentioning

confidence: 99%

A deterministic detector for vector vortex states

Ndagano

Nape

Perez-García

et al. 2017

Sci Rep

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“…Investigations and interest focused on the vector beams with radial and azimuthal polarizations. Such beams can be generated by an intracavity [60,61] or an external approach [62][63][64][65][66][67]. An example of intracavity method is a work of VG.…”

Section: Mini Reviewmentioning

confidence: 99%

“…However, these plates lack of tunable flexibility. With the development of programmable devices, spatial light modulator (SLM) is increasingly being utilized to generate vector vortex beams [65][66][67]. In 2017, a novel interferometric approach to generate arbitrary vector vortex beams on the high-order Poincaré sphere has been proposed by Shizhen Chen et al [67].…”

Section: Mini Reviewmentioning

confidence: 99%

Recent Advances on Tunable Vortex Beam Devices for Biomedical Applications

Shen

Yang

et al. 2018

BJSTR

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The optical vortex beams carrying orbital angular momentum (OAM) recently have unveiled great potential to be widely applied in advanced biomedicine, e.g. manipulating and assembling DNA, detecting biomolecule, organic illumination, single-cell nanosurgery, etc. However, it is an everlasting challenge to produce the proper vortices devices for corresponding applications. To this end, the tunable properties of OAM beams need to be produced. The spectrum-tunable property is related to the tuning of the response of target molecules. The OAM-tunable property can control the number and distribution of target particles. Moreover, the polarization-tunable property can be used to reduce photodamage. Hereinafter, we give a prompt review of the recent advances on tunable vortex beam devices for biomedical applications.

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“…Several approaches, mostly based on the Gerchberg-Saxton algorithm, are usually adopted to obtain a pure phase function providing an acceptable approximation for Equation (1) [33]. In what follows, we describe a method to directly generate a dark hollow beam in which the shape of the dark zone is basically inherited from the shape of a selected plane curve.…”

Section: Introductionmentioning

confidence: 99%

Geometric-Phase Waveplates for Free-Form Dark Hollow Beams

2020

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We demonstrate the possibility to create optical beams with phase singularities engraved into exotic intensity landscapes imitating the shapes of a large variety of diverse plane curves. To achieve this aim, we have developed a method for directly encoding the geometric properties of some selected curve into a single azimuthal phase factor without passing through indirect encryption methods based on lengthy numerical procedures. The outcome is utilized to mould the optic axis distribution of a liquid-crystal-based inhomogeneous waveplate. The latter is finally used to sculpt the wavefront of an input optical gaussian beam via Pancharatnam-Berry phase.

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Generation of flower high-order Poincaré sphere laser beams from a spatial light modulator

Cited by 24 publications

References 24 publications

A deterministic detector for vector vortex states

A deterministic detector for vector vortex states

Recent Advances on Tunable Vortex Beam Devices for Biomedical Applications

Geometric-Phase Waveplates for Free-Form Dark Hollow Beams

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