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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 2 — Jan. 22, 2007
  • pp: 278–288

Dispersion-compensated beam-splitting of femtosecond light pulses: Wave optics analysis

Gladys Mínguez-Vega, Enrique Tajahuerce, Mercedes Fernández-Alonso, Vicent Climent, Jesús Lancis, José Caraquitena, and Pedro Andrés  »View Author Affiliations

Optics Express, Vol. 15, Issue 2, pp. 278-288 (2007)

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Recently, using parageometrical optics concepts, a hybrid, diffractive-refractive, lens triplet has been suggested to significantly improve the spatiotemporal resolution of light spots in multifocal processing with femtosecond laser pulses. Here, we carry out a rigorous wave-optics analysis, including the spatiotemporal nature of the wave equation, to elucidate both the spatial extent of the diffractive spots and the temporal duration of the pulse at the output plane. Specifically, we show nearly transform-limited behavior of diffraction maxima. Moreover, the temporal broadening of the pulse is related to the group velocity dispersion, which can be pre-compensated for in practical applications. Finally, some numerical simulations of the spatiotemporal wave field at the output plane in a realistic case are provided.

© 2007 Optical Society of America

OCIS Codes
(050.1970) Diffraction and gratings : Diffractive optics
(220.4830) Optical design and fabrication : Systems design
(320.0320) Ultrafast optics : Ultrafast optics

ToC Category:
Diffraction and Gratings

Original Manuscript: November 10, 2006
Revised Manuscript: December 11, 2006
Manuscript Accepted: December 11, 2006
Published: January 22, 2007

Gladys Mínguez-Vega, Enrique Tajahuerce, Mercedes Fernández-Alonso, Vicent Climent, Jesús Lancis, José Caraquitena, and Pedro Andrés, "Dispersion-compensated beam-splitting of femtosecond light pulses: Wave optics analysis," Opt. Express 15, 278-288 (2007)

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