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VOLUME 47 (1988) | ISSUE 10 | PAGE 494
Nonlinear high-resolution subsurface imaging: new application of self-focusing
The possibility of utilizing the self-focusing of radiation for subsurface imaging is proposed. A study of this possibility is reported. It is possible to increase the efficiency (to intensify the backward transport of the acoustic and optical responses) and to increase the imaging resolution by virtue of a contraction of the beam spot.