Negative-frequency dispersive wave generation in quadratic media
Negative-frequency dispersive wave generation in quadratic media
We show that the extremely blueshifted dispersive wave emitted in Kerr media owing to the coupling with the negative-frequency branch [E. Rubino et al., Phys. Rev. Lett. 108, 253901 (2012)] can be observed in quadratic media via second-harmonic generation. Not only is such a phenomenon thus independent of the specific …