Title :
Optical coherent imaging of volume scattering media with near infrared tunable laser
Author :
Haberland, Udo ; Schmitt, Hans J.
Author_Institution :
Inst. of High Frequency Tech., Aachen Univ. of Technol., Germany
fDate :
31 Oct-3 Nov 1996
Abstract :
The detection and imaging of highly scattering objects in scattering media can play an important part in assessing melanoma in human skin. The technique that is presented in this paper is based on frequency modulated continuous waves (FMCW) but uses a coherent near infrared tunable semiconductor laser. The performance of our imaging system is demonstrated on 2-D images taken from solid scattering material with known optical properties and several embedded objects. A reflecting and scattering rod can be seen up to 3 mm depth with a spatial resolution of 800 μm
Keywords :
biomedical imaging; laser applications in medicine; laser tuning; light coherence; light scattering; optical modulation; skin; coherent near infrared tunable semiconductor lase; embedded objects; frequency modulated continuous waves; highly scattering objects; human skin; imaging system; known optical properties; melanoma; near infrared tunable laser; optical coherent imaging; performance; reflecting rod; scattering rod; solid scattering material; spatial resolution; volume scattering media; Frequency modulation; Humans; Malignant tumors; Object detection; Optical imaging; Optical modulation; Optical scattering; Semiconductor lasers; Skin; Tunable circuits and devices;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.651998
