학술논문

Time-gated transillumination of objects in highly scattering media using a subpicosecond optical amplifier
Document Type
Periodical
Source
IEEE Journal of Selected Topics in Quantum Electronics IEEE J. Select. Topics Quantum Electron. Selected Topics in Quantum Electronics, IEEE Journal of. 5(4):895-901 Aug, 1999
Subject
Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Optical scattering
Particle scattering
Stimulated emission
X-ray scattering
Biomedical optical imaging
Light scattering
Semiconductor optical amplifiers
Optical amplifiers
Biomedical imaging
Optical imaging
Language
ISSN
1077-260X
1558-4542
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-/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.