Efficient angular dispersion compensation in holographic generation of intense ultrashort paraxial beam modes

Strohaber, James; Petersen, Chad; Uiterwaal, Cornelis

doi:10.1364/ol.32.002387

Cited by 14 publications

(25 citation statements)

References 14 publications

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“…1(a). Several modifications of these setups have been recently reported [6][7][8]. The first grating operates as a dispersive element, while the second grating is used to encode a specific spatial distribution.…”

mentioning

confidence: 99%

“…To demonstrate the optical performance of the proposed setup, we recorded several paraxial beams on grating G2. In particular here we consider a Laguerre-Gaussian (LG) mode LG p,l , where p and l are the radial index and topological charge, respectively (e.g., see [8] and references there in). An LG mode is a well-known example of optical vortex ͑l 0͒ that carries an orbital angular momentum of lប per photon.…”

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confidence: 99%

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Generation of femtosecond paraxial beams with arbitrary spatial distribution

et al. 2010

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We present an approach to generate paraxial laser beams with arbitrary spatial distribution in the femtosecond time regime. The proposed technique is based upon a pair of volume phase holographic gratings working in parallel arrangement. It exploits the spatial coherence properties of the incoming laser beam in a compact and robust setup that mitigates angular and spatial chirp. The gratings were recorded in a photopolymerizable glass with a high optical damage threshold and a large optical throughput. Setup performance is studied and experimentally demonstrated by generating Laguerre-Gaussian femtosecond pulses.

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confidence: 99%

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confidence: 99%

Generation of femtosecond paraxial beams with arbitrary spatial distribution

et al. 2010

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“…Other configurations such as a lens-less setup with grating and SLM assembled [16,17] and modifications based on the scheme in Fig. 1(a) have been also reported [18][19][20][21][22]. In Fig.…”

Section: Optical Setupmentioning

confidence: 84%

“…The ultrashort spatial pulse at the focus is then computed by (8) and the signal to be codified in the dynamically controllable hologram is found by (6), in both cases using the coefficients A n,m giving by (20). This approach avoids a hard calculation arose from the iterative algorithms used to solve the inverse problem.…”

Section: Spatial Pulse Shaping At the Focusmentioning

confidence: 99%

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Femtosecond spatial pulse shaping at the focal plane

Martínez-Matos¹,

Vaveliuk²,

Izquierdo³

et al. 2013

Opt. Express

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Abstract:Spatial shaping of ultrashort laser beams at the focal plane is theoretically analyzed. The description of the pulse is performed by its expansion in terms of Laguerre-Gaussian orthonormal modes. This procedure gives both a comprehensive interpretation of the propagation dynamics and the required signal to encode onto a spatial light modulator for spatial shaping, without using iterative algorithms. As an example, pulses with top-hat and annular spatial profiles are designed and their dynamics analyzed. The interference of top-hat pulses is also investigated finding potential applications in high precision pump-probe experiments (without using delay lines) and for the creation of subwavelength ablation patterns. In addition, a novel class of ultrashort pulses possessing non-stationary orbital angular momentum is also proposed. These exotic pulses provide additional degrees of freedom that open up new perspectives in fields such as laser-matter interaction and micro-machining.

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General relativistic manifestations of orbital angular and intrinsic hyperbolic momentum in electromagnetic radiation

Strohaber

2020

Gen Relativ Gravit

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General relativistic effects in the weak field approximation are calculated for electromagnetic Laguerre-Gaussian (LG) beams. The current work is an extension of previous work on the precession of a spinning neutral particle in the weak gravitational field of an optical vortex. In the current work, the metric perturbation is extended to all coordinate configurations and includes gravitational effects from circular polarization and intrinsic hyperbolic momentum. The final metric reveals frame-dragging effects due to intrinsic spin angular momentum (SAM), orbital angular momentum (OAM), and spin-orbit (SO) coupling. When investigating the acceleration of test particles in this metric, an unreported gravitational phenomenon was found. This effect is analogous to the motion of charged particles in the magnetic field produced by a current carrying wire. It was found that the gravitational influence of SAM and OAM affects test-rays traveling perpendicular to the intense beam and from this a gravitational Aharonov-Bohm analog is pursued.

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Efficient angular dispersion compensation in holographic generation of intense ultrashort paraxial beam modes

Cited by 14 publications

References 14 publications

Generation of femtosecond paraxial beams with arbitrary spatial distribution

Generation of femtosecond paraxial beams with arbitrary spatial distribution

Femtosecond spatial pulse shaping at the focal plane

General relativistic manifestations of orbital angular and intrinsic hyperbolic momentum in electromagnetic radiation

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