Title :
Time-gated transillumination of objects in highly scattering media using a subpicosecond optical amplifier
Author :
Marengo, Stéphanie ; Pépin, Claude ; Goulet, Thomas ; Honde, D.
Author_Institution :
Dept. of Nucl. Med. & Radiobiol., Sherbrooke Univ., Que., Canada
Abstract :
We have developed an optical system that simultaneously selects and amplifies photons in a time window of less than 10 ps. This new subpicosecond optical amplifier allowed us to realize one-dimensional images of a striped pattern with a spatial resolution of 200-μm through a 30-mm liquid scattering medium. Monte Carlo simulations were performed to study the relative importance of parameters characterizing the medium and the time-gated amplifying system in relation to the image sharpness. The potential application of this system in medical imaging is discussed
Keywords :
Monte Carlo methods; amplifiers; biomedical imaging; digital simulation; high-speed optical techniques; light scattering; Monte Carlo simulations; highly scattering media; image sharpness; liquid scattering medium; medical imaging; objects; one-dimensional images; optical system; photons; spatial resolution; striped pattern; subpicosecond optical amplifier; time window; time-gated amplifying system; time-gated transillumination; Biomedical imaging; Biomedical optical imaging; Light scattering; Optical amplifiers; Optical imaging; Optical scattering; Particle scattering; Semiconductor optical amplifiers; Stimulated emission; X-ray scattering;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.796308
