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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 12 — Jun. 15, 2014
  • pp: 3390–3393

Improved optoacoustic microscopy through three-dimensional spatial impulse response synthetic aperture focusing technique

Jake Turner, Héctor Estrada, Moritz Kneipp, and Daniel Razansky  »View Author Affiliations


Optics Letters, Vol. 39, Issue 12, pp. 3390-3393 (2014)
http://dx.doi.org/10.1364/OL.39.003390


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Abstract

Synthetic aperture focusing technique (SAFT) is effective in restoring lateral resolution of ultrasonic images for scans with focusing-related distortions. Although successfully applied in pulse-echo ultrasonics, the physical nature of an optoacoustic modality requires a modified algorithm to return accurate results. The SIR-SAFT method reported here uses the spatial impulse response (SIR) of the transducer to weight the contributions to the SAFT and is tailored to provide significant resolution and signal gains for out-of-focus sources in scanning optoacoustic microscopy systems. Furthermore, the SIR-SAFT is implemented in full three dimensions, applicable to signals both far of and at the focus of the ultrasonic detector. The method has been further shown to outperform conventional SAFT algorithms for both simulated and experimental optoacoustic data.

© 2014 Optical Society of America

OCIS Codes
(110.0180) Imaging systems : Microscopy
(110.5120) Imaging systems : Photoacoustic imaging
(110.7170) Imaging systems : Ultrasound

ToC Category:
Imaging Systems

History
Original Manuscript: January 29, 2014
Revised Manuscript: April 2, 2014
Manuscript Accepted: April 26, 2014
Published: June 3, 2014

Citation
Jake Turner, Héctor Estrada, Moritz Kneipp, and Daniel Razansky, "Improved optoacoustic microscopy through three-dimensional spatial impulse response synthetic aperture focusing technique," Opt. Lett. 39, 3390-3393 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-12-3390


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