Ultrashort Laser Pulses Tomography in Semi-Opaque Media
Spatial distribution of hidden foreign objects in a semi-opaque environment has been investigated using ultrashort laser pulse time resolved techniques with spatial resolution down to less than 1 mm. Using femtosecond streak camera ranging, 1-dimensional distance has been measured. Time sequences of 2-dimensional images have been obtained using picosecond-Kerr gate.
KeywordsNumerical Aperture Signal Pulse Ultrashort Laser Pulse Scattered Signal Streak Camera
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- 3.P.P. Ho and R.R. Alfano, Optical ken effect in liquids, Phys. Rev., A20: 2170–82 (1978).Google Scholar
- 4.K.G. Spears, T.J. Robinson and R.M. Roth, Particle distributions and laser particle interactions in an RF discharge of silane, IEEE, Trans. Plasma Sc., PS14: 179–87 (1986).Google Scholar
- 6.G. Yoon, A.J. Welch, M. Motamedi and M. Van Gernert, Development and application of three-dimensional light distribution model for laser irradiated tissue, IEEE., JQE23: 1721–33 (1987).Google Scholar
- 8.B. Chance, Photon Migration Workshop, University of Pennsylvania, April 17, 1988.Google Scholar
- 10.H. van de Hulst, Light scattering by small particles, John Wiley & Sons, New York (1957).Google Scholar
- 11.D. Gloge, E.A. Marcatili, D. Marcuse and S.D. Personick, Dispersion properties of fibers, jn: “Optical Fiber Telecommunications,” S. Miller and A. Chynoweth, eds., Academic Press, New York (1979).Google Scholar