Time-gated transillumination of objects in highly scattering media using a subpicosecond optical amplifier

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-/spl mu/m through a 30-mm liquid scat...

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Veröffentlicht in:	IEEE journal of selected topics in quantum electronics 1999-07, Vol.5 (4), p.895-901
Hauptverfasser:	Marengo, S., Pepin, C., Goulet, T., Honde, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Amplification Amplifiers Biomedical imaging Biomedical optical imaging Computer simulation Light scattering Liquids Monte Carlo methods Optical amplifiers Optical imaging Optical scattering Particle scattering Photons Scattering Semiconductor optical amplifiers Stimulated emission X-ray scattering
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Beschreibung
Zusammenfassung:	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-/spl mu/m 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.
ISSN:	1077-260X 1558-4542
DOI:	10.1109/2944.796308