The nonlinear Talbot effect, in which self-images are formed by generated parametric light from the nonlinear optical process, is presented in this paper. The comparison is made between the conventional Talbot effect and the newly observed nonlinear case. The essence of such nonlinear self-images is provided and future work on this effect is also discussed. The conceptional extension achieved here not only opens a door for broader scopes of applications in imaging techniques but also offers a way for other research fields such as visualizing various ferric domains and subwavelength lithography.
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Wen et al. (2011) studied this question.
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