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Proceedings Paper

A low cost multi-wavelength tomography system based on LED sources
Author(s): Aaron Chen; Yi Yang; Umar Alqasemi; Andres Aguirre; Quing Zhu
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Paper Abstract

We present a multi-wavelength DC system using Light Emitting Diode (LED) sources of four wavelengths in the near infrared range. These LEDs are commercially available, much cheaper than laser diodes, and have adequate power to probe deeply seated lesions. In our system, 8 groups of LEDs of four wavelengths were deployed on a hand-held probe and 10 PMT detectors were fiber coupled to the probe. A co-registered ultrasound (US) array located in the middle of the probe provided lesion location and morphology, which were used for assisting near infrared imaging reconstruction. Experiments evaluated the performance of the LED based DC system using phantom targets.

Paper Details

Date Published: 1 March 2011
PDF: 6 pages
Proc. SPIE 7896, Optical Tomography and Spectroscopy of Tissue IX, 789613 (1 March 2011); doi: 10.1117/12.878811
Show Author Affiliations
Aaron Chen, Univ. of Connecticut (United States)
Yi Yang, Univ. of Connecticut (United States)
Umar Alqasemi, Univ. of Connecticut (United States)
Andres Aguirre, Univ. of Connecticut (United States)
Quing Zhu, Univ. of Connecticut (United States)


Published in SPIE Proceedings Vol. 7896:
Optical Tomography and Spectroscopy of Tissue IX
Bruce Jason Tromberg; Arjun G. Yodh; Mamoru Tamura; Eva Marie Sevick-Muraca; Robert R. Alfano, Editor(s)

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