Controlling light’s helicity at the source: orbital angular momentum states from lasers

Forbes, Andrew

doi:10.1098/rsta.2015.0436

Cited by 69 publications

(36 citation statements)

References 80 publications

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“…We open with two papers describing some of the theoretical background and issues in the description of OAM [47,48]. The generation of beams with OAM directly from lasers is the topic of the next paper [49]. Light carrying OAM has found a number of practical applications and we have papers describing two of these: the forces and torques induced by them [50] and the use of OAM in microscopy [51].…”

Section: Recent Developments and This Theme Issuementioning

confidence: 99%

Optical orbital angular momentum

Barnett

Babiker

Padgett

2017

Phil. Trans. R. Soc. A.

117

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We present a brief introduction to the orbital angular momentum of light, the subject of our theme issue and, in particular, to the developments in the 13 years following the founding paper by Allen et al. (Allen et al. 1992 Phys. Rev. A 45 , 8185 ( doi:10.1103/PhysRevA.45.8185 )). The papers by our invited authors serve to bring the field up to date and suggest where developments may take us next. This article is part of the themed issue ‘Optical orbital angular momentum’.

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Section: Recent Developments and This Theme Issuementioning

confidence: 99%

Optical orbital angular momentum

Barnett

Babiker

Padgett

2017

Phil. Trans. R. Soc. A.

117

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“…In eliciting the physics for the majority of applications discussed above, it has generally proved sufficient to use plane-wave representations of the quantum radiation modes, together with their polarization properties. Nonetheless, the same QED methods are highly amenable to application in the sphere of structured light [207], leading, for example, to the discovery that it is possible to deliver vortex photons by direct emission from suitably excited arrays [208][209][210] and so paving the way for a range of technical developments and implementations [211][212][213][214][215][216]. Whether the optical orbital angular momentum (OAM) of structured light could be transferred to the internal electronic degrees of freedom of an atom or molecule has been a well-debated topic, with highly significant implications in spectroscopy [217].…”

Section: B Original Predictions Of Qedmentioning

confidence: 99%

Quantum electrodynamics in modern optics and photonics: tutorial

et al. 2020

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One of the key frameworks for developing the theory of light-matter interactions in modern optics and photonics is quantum electrodynamics (QED). Contrasting with semiclassical theory, which depicts electromagnetic radiation as a classical wave, QED representations of quantized light fully embrace the concept of the photon. This tutorial review is a broad guide to cutting-edge applications of QED, providing an outline of its underlying foundation and an examination of its role in photon science. Alongside the full quantum methods, it is shown how significant distinctions can be drawn when compared to semiclassical approaches. Clear advantages in outcome arise in the predictive capacity and physical insights afforded by QED methods, which favors its adoption over other formulations of radiation-matter interaction.

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“…Researchers have turned to intracavity modulation for generating high-purity LG 0 l modes, since an optical cavity can perform mode selection and directly output laser modes 27,28 .…”

Section: Introductionmentioning

confidence: 99%

Generating Controllable Laguerre-Gaussian Laser Modes Through Intracavity Spin-Orbital Angular Momentum Conversion of Light

Wei

Cheng

et al. 2019

Phys. Rev. Applied

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The rapid developments in orbital-angular-momentum-carrying Laguerre-Gaussian (LG 0 l ) modes in recent years have facilitated progresses in optical communication, micromanipulation and quantum information. However, it is still challenging to efficiently generate bright, pure and selectable LG 0 l laser modes in compact devices. Here, we demonstrate a low-threshold solid-state laser that can directly output selected high-purity LG 0 l modes with high efficiency and controllability. Spinorbital angular momentum conversion of light is used to reversibly convert the transverse modes inside cavity and determine the output mode index. The generated LG 0 1 and LG 0 2 laser modes have purities of ~97% and ~93% and slope efficiencies of ~11% and ~5.1%, respectively. Moreover, our cavity design can be easily extended to produce higher-order Laguerre-Gaussian modes and cylindrical vector beams. Such compact laser configuration features flexible control, low threshold, and robustness, making it a practical tool for applications in super-resolution imaging, highprecision interferometer and quantum correlations.

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Controlling light’s helicity at the source: orbital angular momentum states from lasers

Cited by 69 publications

References 80 publications

Optical orbital angular momentum

Optical orbital angular momentum

Quantum electrodynamics in modern optics and photonics: tutorial

Generating Controllable Laguerre-Gaussian Laser Modes Through Intracavity Spin-Orbital Angular Momentum Conversion of Light

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