Colored conical emission by means of second-harmonic generation

2 00 2 Coloured conical emission via second - harmonic generation

Generation of second-harmonic conical waves via nonlinear bragg diffraction.

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 conv...

Conical harmonic generation in isotropic materials.

A novel class of nonlinear optical processes is described in which radiation at the nth harmonic is generated through the use of a (2n+1)-order nonlinearity. Utilizing an odd-order nonlinearity, this process allows for the generation and amplification of both odd- and even-order harmonics in isotropic materials. Additionally, this process can always be phase matched in normal-dispersion materia...

Nonlinear Ellipsometry by Second Harmonic Generation

Fabio Antonio Bovino1, Maria Cristina Larciprete2, Concita Sibilia2 Maurizio Giardina1, G. Váró3 and C. Gergely4 1Quantum Optics Lab Selex-Sistemi Integrati, Genova, Italy 2Department of Basic and Applied Sciences in Engineering, Sapienza University, Rome, 3Institute of Biophysics, Biological Research Center, Hungarian Academy of Sciences, Szeged, 4Montpellier University, Charles Coulomb Labora...

Second-harmonic generation by a graphene nanoparticle

Daria A. Smirnova,1 Ilya V. Shadrivov,1 Andrey E. Miroshnichenko,1 Alexander I. Smirnov,2,3 and Yuri S. Kivshar1 1Nonlinear Physics Center, Research School of Physics and Engineering, Australian National University, Canberra ACT 0200, Australia 2Lobachevsky State University, Nizhny Novgorod 603950, Russia 3Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod 603950, Russia...