Leo Giuseppe, Colace Lorenzo, Amoroso Antonio, Di Falco Andrea, Assanto Gaetano
NOOEL--Nonlinear Optics and OptoElectronics Laboratory, National Institute for the Physics of Matter, Department of Electronic Engineering, University Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy.
Opt Lett. 2003 Jun 15;28(12):1031-3. doi: 10.1364/ol.28.001031.
With second-harmonic generation in surface and buried planar waveguides achieved by direct and reverse proton exchange in lithium niobate, we demonstrate a novel kind of quadratic spatial simulton: The transverse-electric fundamental input and the transverse-magnetic second-harmonic waves nonlinearly couple two superimposed planar waveguides, permitting transverse localization of light at room temperature and at excitations as low as 340 nJ in 20-ps pulses.
通过在铌酸锂中进行直接和反向质子交换实现了表面和掩埋平面波导中的二次谐波产生，我们展示了一种新型的二次空间孤立子：横向电基模输入波和横向磁二次谐波波在两个叠加的平面波导中非线性耦合，从而在室温下以及在20皮秒脉冲中低至340纳焦的激发能量下实现光的横向局域化。
