X-waves Generated at Second Harmonic
نویسندگان
چکیده
The process of optical frequency doubling can lead, in the undepleted regime, to the generation of a X-wave envelope with group velocity locked to the pump beam. Its parameters and its angular spectrum, are directly related to the zeroand first-order dispersive features of the nonlinear process. This constitutes a novel mechanism for spatio-temporal localization of light. Electronic address: [email protected]; URL: http://optow.ele.uniroma3.it Permanent address: Dept. of Engineering, University of Ferrara, Via Saragat 1, 44100, Ferrara, Italy
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