An Organic Vortex Laser

Stellinga, Daan; Pietrzyk, Monika; Glackin, James M. E.; Wang, Yue; Bansal, Ashu K.; Turnbull, Graham A.; Dholakia, Kishan; Samuel, Ifor D. W.; Krauss, Thomas F.

doi:10.1021/acsnano.7b07703

Cited by 38 publications

(27 citation statements)

References 25 publications

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“…The advanced microscopy brought about by VBs was also used for observing biological cell structures with high resolution 279 . Most recently, vortices were directly generated from organic materials 284 , with further development of organic illumination and chemical detection technologies expected in the future.…”

Section: Advanced Applications Of Tunable Vbsmentioning

confidence: 99%

Optical vortices 30 years on: OAM manipulation from topological charge to multiple singularities

et al. 2019

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Thirty years ago, Coullet et al. proposed that a special optical field exists in laser cavities bearing some analogy with the superfluid vortex. Since then, optical vortices have been widely studied, inspired by the hydrodynamics sharing similar mathematics. Akin to a fluid vortex with a central flow singularity, an optical vortex beam has a phase singularity with a certain topological charge, giving rise to a hollow intensity distribution. Such a beam with helical phase fronts and orbital angular momentum reveals a subtle connection between macroscopic physical optics and microscopic quantum optics. These amazing properties provide a new understanding of a wide range of optical and physical phenomena, including twisting photons, spin–orbital interactions, Bose–Einstein condensates, etc., while the associated technologies for manipulating optical vortices have become increasingly tunable and flexible. Hitherto, owing to these salient properties and optical manipulation technologies, tunable vortex beams have engendered tremendous advanced applications such as optical tweezers, high-order quantum entanglement, and nonlinear optics. This article reviews the recent progress in tunable vortex technologies along with their advanced applications.

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Section: Advanced Applications Of Tunable Vbsmentioning

confidence: 99%

Optical vortices 30 years on: OAM manipulation from topological charge to multiple singularities

et al. 2019

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“…Recently, vortex beams with different topological charge q are found to be mutually orthogonal and can therefore be multiplexed [5][6][7] . As a result, the generation of on-chip integrated orbital angular momentum (OAM) microlasers has been recognized as an effective approach to address the exponentially growing demand for worldwide network capacity [8][9][10][11] . In the past few years, great success has been achieved in on-chip integrated vortex microlasers.…”

mentioning

confidence: 99%

Lead halide perovskite vortex microlasers

Sun

Liu

et al. 2020

Nat Commun

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Lead halide perovskite microlasers have been very promising for versatile optoelectronic applications. However, most perovskite microlasers are linearly polarized with uniform wavefront. The structured laser beams carrying orbital angular momentum have rarely been studied and the applications of perovskites in next-generation optical communications are thus hindered. Herein, we experimentally demonstrate the perovskite vortex microlasers with highly directional outputs and well−controlled topological charges. High quality gratings have been experimentally fabricated in perovskite film and the subsequent vertical cavity surface emitting lasers (VCSELs) with divergent angles of 3o are achieved. With the control of Archimedean spiral gratings, the wavefront of the perovskite VCSELs has been switched to be helical with topological charges of q = −4 to 4. This research is able to expand the potential applications of perovskite microlasers in hybrid integrated photonic networks, as well as optical computing.

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“…[] allowed any position on the Higher‐order Poincaré sphere to be produced from the same cavity by rotation of just two optical elements. Integrated solutions include vertical‐cavity surface‐emitting lasers, microchip lasers, organic lasers, and on‐chip devices …”

Section: Structured Light Lasersmentioning

confidence: 99%

Structured Light from Lasers

Forbes

2019

Laser & Photonics Reviews

232

126

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Structured light is derived from the ability to tailor light, usually referring to the spatial control of its amplitude, phase, and polarization. Although a venerable topic that dates back to the very first laser designs, structuring light at the source has seen an explosion in activity over the past decade, fuelled by a modern toolkit that exploits the versatility of diffractive structures, liquid crystals, metasurfaces/metamaterials, and exotic laser geometries, as well as a myriad of applications that range from imaging, microscopy, and laser material processing to optical communication. Here, the recent progress in creating and controlling structured light is reviewed, with particular emphasis on structuring light at the source: structured light lasers. The various design approaches, including pump shaping, cavity geometries, and the use of custom intracavity optical elements, implemented in a variety of lasers from microchip solutions to high‐power fibers are covered in a tutorial style. The history and latest developments in the field are reviewed, elucidating the various structured light patterns that have been created from lasers, including orbital angular momentum and vector states of light. Finally, the present challenges and limitations are highlighted, along with comments on likely future trends.

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An Organic Vortex Laser

Cited by 38 publications

References 25 publications

Optical vortices 30 years on: OAM manipulation from topological charge to multiple singularities

Optical vortices 30 years on: OAM manipulation from topological charge to multiple singularities

Lead halide perovskite vortex microlasers

Structured Light from Lasers

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