TY - JOUR
T1 - Generation of second-harmonic conical waves via nonlinear Bragg diffraction
AU - Saltiel, Solomon M.
AU - Neshev, Dragomir N.
AU - Fischer, Robert
AU - Krolikowski, Wieslaw
AU - Arie, Ady
AU - Kivshar, Yuri S.
PY - 2008/3/12
Y1 - 2008/3/12
N2 - We report on the observation of second-harmonic conical waves generated in a novel geometry of the transverse excitation of an annular periodically poled nonlinear photonic structure by a fundamental Gaussian beam. We show that the conical beams are formed as a result of the higher-order nonlinear Bragg diffraction involving two parametric processes in which an ordinary fundamental wave is converted simultaneously into ordinary and extraordinary polarized second harmonics.
AB - We report on the observation of second-harmonic conical waves generated in a novel geometry of the transverse excitation of an annular periodically poled nonlinear photonic structure by a fundamental Gaussian beam. We show that the conical beams are formed as a result of the higher-order nonlinear Bragg diffraction involving two parametric processes in which an ordinary fundamental wave is converted simultaneously into ordinary and extraordinary polarized second harmonics.
UR - http://www.scopus.com/inward/record.url?scp=40849142295&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.100.103902
DO - 10.1103/PhysRevLett.100.103902
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C2 - 18352187
AN - SCOPUS:40849142295
VL - 100
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 10
M1 - 103902
ER -