Open AccessJournal Article
Holographic generation and orbital angular momentum of high-order Mathieu beams : Special issue on atoms and angular momentum of light
Sabino Chávez-Cerda,Miles J. Padgett,I. Allison,G.H.C. New,Julio C. Gutiérrez-Vega,Anna T. O'Neil,I. Macvicar,Johannes Courtial +7 more
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In this article, the first experimental generation of high-order Mathieu beams and confirm their propagation invariance over a limited range were reported, using a computer-generated phase hologram.Abstract:
We report the first experimental generation of high-order Mathieu beams and confirm their propagation invariance over a limited range. In our experiment we use a computer-generated phase hologram. The peculiar behaviour of the vortices in Mathieu beams gives rise to questions about their orbital-angular-momentum content, which we calculate by performing a decomposition in terms of Bessel beams.read more
Citations
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Optical vortices 30 years on: OAM manipulation from topological charge to multiple singularities
TL;DR: The authors survey the steady refinement of techniques used to create optical vortices, and explore their applications, which include sophisticated optical computing processes, novel microscopy and imaging techniques, the creation of ‘optical tweezers’ to trap particles of matter, and optical machining using light to pattern structures on the nanoscale.
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Simultaneous micromanipulation in multiple planes using a self-reconstructing light beam
TL;DR: Bessel beams do not diverge and, furthermore, if part of the beam is obstructed or distorted the beam reconstructs itself after a characteristic propagation distance, which may be utilized within optical tweezers to trap particles in multiple, spatially separated sample cells with a single beam.
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Quantum Entanglement of High Angular Momenta
Robert Fickler,Robert Fickler,Radek Lapkiewicz,Radek Lapkiewicz,William N. Plick,William N. Plick,Mario Krenn,Mario Krenn,Christoph Schaeff,Christoph Schaeff,Sven Ramelow,Sven Ramelow,Anton Zeilinger,Anton Zeilinger +13 more
TL;DR: A method for converting the polarization state of photons into information encoded into spatial modes of a single photon is presented and entanglement of very high OAM can improve the sensitivity of angular resolution in remote sensing.
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Advanced optical trapping by complex beam shaping
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Optical trapping and binding
Richard Bowman,Miles J. Padgett +1 more
TL;DR: The underlying theory of optical traps is outlined, and many of the physical observations that have been made in such systems are explored, including 'optical binding', where trapped objects interact with one another through the trapping light field.
References
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Orbital angular momentum of light and the transformation of Laguerre-Gaussian laser modes.
TL;DR: Laser light with a Laguerre-Gaussian amplitude distribution is found to have a well-defined orbital angular momentum and an astigmatic optical system may be used to transform a high-order LaguERre- Gaussian mode into aHigh-order Hermite-Gaussia mode reversibly.
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TL;DR: In this paper, exact nonsingular solutions of the scalar-wave equation for beams that are non-diffracting were presented, which means that the intensity pattern in a transverse plane is unaltered by propagating in free space.