Third-harmonic generation in focused beams as a method of 3D microscopy of a laser-produced plasma
- Cite this article as:
- Naumov, A.N., Sidorov-Biryukov, D.A., Fedotov, A.B. et al. Opt. Spectrosc. (2001) 90: 778. doi:10.1134/1.1374669
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Analysis of the phase-matching integral for third-harmonic generation in focused laser beams shows that this process can be used as a method of 3D microscopy, allowing one to characterize the location and magnitude of inhomogeneities of linear and nonlinear optical characteristics of a medium. The potentialities of this method are illustrated by the results of experiments on 3D microscopy of an optical breakdown plasma.