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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 38, Iss. 18 — Sep. 15, 2013
  • pp: 3642–3645

Sub-3-cycle vortex pulses of tunable topological charge

Martin Bock, Jens Brunne, Alexander Treffer, Stefan König, Ulrike Wallrabe, and Ruediger Grunwald  »View Author Affiliations

Optics Letters, Vol. 38, Issue 18, pp. 3642-3645 (2013)

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Novel types of reflective spiral micro-electro-mechanical systems were used to generate few-cycle vortex pulses of variable topological charge from a Ti:sapphire laser oscillator. The phase profile of these components was controlled by varying the temperature. The temporal properties of the pulses were characterized with spatially resolved nonlinear autocorrelation. The beam structure resembles a slightly distorted Laguerre–Gaussian distribution. The different topological charges were indicated by detecting Poynting-vector maps with a programmable Shack–Hartmann sensor of enhanced angular sensitivity.

© 2013 Optical Society of America

OCIS Codes
(320.0320) Ultrafast optics : Ultrafast optics
(080.4865) Geometric optics : Optical vortices
(260.6042) Physical optics : Singular optics
(220.1080) Optical design and fabrication : Active or adaptive optics

ToC Category:
Ultrafast Optics

Original Manuscript: July 1, 2013
Manuscript Accepted: August 16, 2013
Published: September 12, 2013

Martin Bock, Jens Brunne, Alexander Treffer, Stefan König, Ulrike Wallrabe, and Ruediger Grunwald, "Sub-3-cycle vortex pulses of tunable topological charge," Opt. Lett. 38, 3642-3645 (2013)

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