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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 8 — Apr. 15, 2006
  • pp: 1091–1093

Simultaneous compensation for spatial and temporal dispersion of acousto-optical deflectors for two-dimensional scanning with a single prism

Shaoqun Zeng, Xiaohua Lv, Chen Zhan, Wei R. Chen, Wenhui Xiong, Steven L. Jacques, and Qingming Luo  »View Author Affiliations


Optics Letters, Vol. 31, Issue 8, pp. 1091-1093 (2006)
http://dx.doi.org/10.1364/OL.31.001091


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Abstract

The dispersive nature of the acousto-optical deflector (AOD) presents a challenge to applications of two sequential orthogonal AODs (a two-dimensional AOD) as X Y scanners in multiphoton microscopy. Introducing a prism before the two-dimensional (2D) AOD allows both temporal and spatial dispersion to be compensated for simultaneously. A 90 fs laser pulse was broadened to 572 fs without compensation, and 143 fs with compensation. The ratio of long axis to short axis of the exiting laser beam spot was 3.50 without compensation and 1.14 with compensation. The insertion loss was 37%. Two-photon fluorescence microscopy used the compensated 2D AOD scanner to image a fluorescent microsphere, which improves signal intensity ~15-fold compared with the uncompensated scanner.

© 2006 Optical Society of America

OCIS Codes
(170.0110) Medical optics and biotechnology : Imaging systems
(170.5810) Medical optics and biotechnology : Scanning microscopy
(170.7160) Medical optics and biotechnology : Ultrafast technology
(180.5810) Microscopy : Scanning microscopy

ToC Category:
Microscopy

History
Original Manuscript: October 17, 2005
Revised Manuscript: January 4, 2006
Manuscript Accepted: January 13, 2006

Virtual Issues
Vol. 1, Iss. 5 Virtual Journal for Biomedical Optics

Citation
Shaoqun Zeng, Xiaohua Lv, Chen Zhan, Wei R. Chen, Wenhui Xiong, Steven L. Jacques, and Qingming Luo, "Simultaneous compensation for spatial and temporal dispersion of acousto-optical deflectors for two-dimensional scanning with a single prism," Opt. Lett. 31, 1091-1093 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-8-1091


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