Optical imaging through highly scattering media was studied in the 1.3-μm wavelength region by use of a continuous-wave Nd:YAG laser and an optical heterodyne detection technique. We measured and compared the extinction coefficients of the fat emulsion Intralipid-10% at 0.80, 1.064, and 1.319 μm and demonstrated that the low scattering at 1.319 μm will permit optical imaging through highly scattering media, which otherwise may not be achieved. A possible use of water absorption at 1.319 μm to image the interior structure of biological tissues is also presented and discussed.
© 1995 Optical Society of America
Original Manuscript: September 20, 1994
Published: March 1, 1995
Kin Pui Chan, Humio Inaba, Makoto Yamada, and B. Devaraj, "Optical imaging through highly scattering media by use of heterodyne detection in the 1.3-μm wavelength region," Opt. Lett. 20, 492-494 (1995)