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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 25 — Dec. 11, 2006
  • pp: 12243–12254

Optics InfoBase > Optics Express > Volume 14 > Issue 25 > Simultaneous spatial and temporal focusing for axial scanning

Simultaneous spatial and temporal focusing for axial scanning

Michael E. Durst, Guanghao Zhu, and Chris Xu  »View Author Affiliations

Optics Express, Vol. 14, Issue 25, pp. 12243-12254 (2006)

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We show theoretically and experimentally that simultaneous spatial and temporal focusing can scan the temporal focal plane axially by adjusting the group velocity dispersion in the excitation beam path. When the group velocity dispersion is small, the pulse width at the temporal focal plane is transform-limited, and the amount of shift depends linearly upon the dispersion. By adding a meter of large mode area fiber into the system, we demonstrate this axial scanning capability in a fiber delivery configuration. Because a transform-limited pulse width is automatically recovered at the temporal focal plane, simultaneous spatial and temporal focusing negates the need for any dispersion pre-compensation, further facilitating its integration into a fiber delivery system. A highly promising application for simultaneous spatial and temporal focusing is an axial scanning multiphoton fluorescence fiber probe without any moving parts at the distal end and without dispersion pre-compensation.

© 2006 Optical Society of America

OCIS Codes
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(180.5810) Microscopy : Scanning microscopy

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: October 16, 2006
Revised Manuscript: November 20, 2006
Manuscript Accepted: November 21, 2006
Published: December 11, 2006

Virtual Issues
Vol. 2, Iss. 1 Virtual Journal for Biomedical Optics

Michael E. Durst, Guanghao Zhu, and Chris Xu, "Simultaneous spatial and temporal focusing for axial scanning," Opt. Express 14, 12243-12254 (2006)

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