Abstract

We demonstrate a method to generate enhanced nonlinear Cherenkov radiation (NCR) in the bulk medium by utilizing the total reflection on the physical boundaries inside the crystal. This is the experimental demonstration of enhanced NCR by a sharp ${\chi }^{(2)}$ modulation from 0 to 1, and a new way for generating enhanced NCR in addition to using the waveguide structures and the ferroelectric domain walls, which also possesses a better beam quality for applications.

© 2013 Optical Society of America

Sum-frequency nonlinear Cherenkov radiation generated on the boundary of bulk medium crystal

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