Title :
Real-time 2D imaging in turbid media using a femtosecond Cr/sup 4+/:forsterite laser
Author :
Ahraham, E. ; Bordenave, E. ; Tsurumachi, N. ; Jonusauskas, G. ; Oberle, J. ; Rulliere, C.
Author_Institution :
Centre de Phys. Moleculaire Optique et Hertzienne, Bordeaux I Univ., Talence, France
Abstract :
Summary form only given. Imaging through turbid media using optical radiation has been of particular interest because of the potential applications in medical diagnostics, such as pathology or tumor detection. Consequently, many optical methods have been developed to detect objects embedded in strongly scattering media, including time-gating or coherence-gating imaging to discriminate between the early-arriving ballistic photons and the time-delayed scattered photons. In this paper, we demonstrate the efficiency of a femtosecond Cr/sup 4+/:forsterite laser source (1220 nm, 50 fs, 50 /spl mu/J/pulse) for real-time 2D imaging through scattering media using an optical nonlinear time-gating technique.
Keywords :
biological tissues; biomedical imaging; high-speed optical techniques; light scattering; optical frequency conversion; solid lasers; turbidity; 1220 nm; 50 fs; 50 muJ; Mg/sub 2/SiO/sub 4/:Mg; coherence-gating imaging; early-arriving ballistic photons; femtosecond Cr/sup 4+/:forsterite laser; femtosecond Cr/sup 4+/:forsterite laser source; medical diagnostics; optical nonlinear time-gating technique; optical radiation; pathology; real-time 2D imaging; scattering media; strongly scattering media; time-delayed scattered photons; time-gating imaging; tumor detection; turbid media; Biomedical optical imaging; Chromium; Medical diagnosis; Nonlinear optics; Optical imaging; Optical scattering; Particle scattering; Pathology; Tumors; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics Europe, 2000. Conference Digest. 2000 Conference on
Conference_Location :
Nice
Print_ISBN :
0-7803-6319-1
DOI :
10.1109/CLEOE.2000.909847