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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 34, Iss. 18 — Sep. 15, 2009
  • pp: 2715–2717

Tilted-pulse time-resolved off-axis digital holography

Tadas Balčūnas, Andrius Melninkaitis, Andrius Vanagas, and Valdas Sirutkaitis  »View Author Affiliations


Optics Letters, Vol. 34, Issue 18, pp. 2715-2717 (2009)
http://dx.doi.org/10.1364/OL.34.002715


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Abstract

In this Letter we present an improvement of time-resolved off-axis digital holography by the use of tilted femtosecond laser pulses. The pulse front tilting of the reference beam with respect to the phase front allows larger crossing angles to be used for recording of digital holograms without significant reduction of pulse interference area (typically limited by low temporal coherence of ultrashort pulses). Such approach increases the area of interference fringes, thus enabling the higher resolution of the reconstructed image as well as better separation of dc term. Temporal resolution is not deteriorated by this method, as only the reference pulse is tilted. The proposed technique was applied for direct intensity clamping observations of light filaments in water using the laser pulses of 30 fs duration.

© 2009 Optical Society of America

OCIS Codes
(100.5070) Image processing : Phase retrieval
(320.7100) Ultrafast optics : Ultrafast measurements
(090.1995) Holography : Digital holography

ToC Category:
Holography

History
Original Manuscript: March 24, 2009
Revised Manuscript: August 9, 2009
Manuscript Accepted: August 10, 2009
Published: September 4, 2009

Citation
Tadas Balčūnas, Andrius Melninkaitis, Andrius Vanagas, and Valdas Sirutkaitis, "Tilted-pulse time-resolved off-axis digital holography," Opt. Lett. 34, 2715-2717 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-18-2715


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