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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 10 — May. 15, 2013
  • pp: 1621–1623

On-axis non-linear effects with programmable Dammann lenses under femtosecond illumination

Jorge Pérez Vizcaíno, Omel Mendoza-Yero, Rocío Borrego-Varillas, Gladys Mínguez-Vega, Javier R. Vázquez de Aldana, and Jesús Láncis  »View Author Affiliations


Optics Letters, Vol. 38, Issue 10, pp. 1621-1623 (2013)
http://dx.doi.org/10.1364/OL.38.001621


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Abstract

We demonstrate the utilization of Dammann lenses codified onto a spatial light modulator (SLM) for triggering non-linear effects. With continuous wave illumination Dammann lenses are binary phase optical elements that generate a set of equal intensity foci. We theoretically calculate the influence of ultrashort pulse illumination on the uniformity of the generated pattern, which is affected by chromatic aberration for pulses with temporal widths lower than 100 fs. The simulations also indicate that acceptable uniformity can be achieved for pulses of several fs by shortening the distance among foci which can be easily modified with the SLM. Multifocal second-harmonic generation (SHG) and on-axis multiple filamentation are produced and actively controlled in βBaB2O4 (BBO) and fused silica samples, respectively, with an amplified Ti: Sapphire femtosecond laser of 30 fs pulse duration. Experimental results are in very good agreement with theoretical calculations.

© 2013 Optical Society of America

OCIS Codes
(050.1940) Diffraction and gratings : Diffraction
(320.7110) Ultrafast optics : Ultrafast nonlinear optics
(320.6629) Ultrafast optics : Supercontinuum generation

ToC Category:
Ultrafast Optics

History
Original Manuscript: February 8, 2013
Revised Manuscript: April 10, 2013
Manuscript Accepted: April 12, 2013
Published: May 8, 2013

Citation
Jorge Pérez Vizcaíno, Omel Mendoza-Yero, Rocío Borrego-Varillas, Gladys Mínguez-Vega, Javier R. Vázquez de Aldana, and Jesús Láncis, "On-axis non-linear effects with programmable Dammann lenses under femtosecond illumination," Opt. Lett. 38, 1621-1623 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-10-1621

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