A low cost multi-wavelength tomography system based on LED sources

  • Aaron Chen
  • , Yi Yang
  • , Umar Alqasemi
  • , Andres Aguirre
  • , Quing Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

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.

Original languageEnglish
Title of host publicationOptical Tomography and Spectroscopy of Tissue IX
DOIs
StatePublished - 2011
EventOptical Tomography and Spectroscopy of Tissue IX - San Francisco, CA, United States
Duration: Jan 23 2011Jan 26 2011

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7896
ISSN (Print)1605-7422

Conference

ConferenceOptical Tomography and Spectroscopy of Tissue IX
Country/TerritoryUnited States
CitySan Francisco, CA
Period01/23/1101/26/11

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