Multiple Čerenkov second-harmonic waves in a two-dimensional nonlinear photonic structure

2010 ◽  
Vol 35 (22) ◽  
pp. 3790 ◽  
Author(s):  
Wenjie Wang ◽  
Yan Sheng ◽  
Yongfa Kong ◽  
Ady Arie ◽  
Wieslaw Krolikowski
Keyword(s):  
Second Harmonic ◽  
Harmonic Waves ◽  
Two Dimensional ◽  
Photonic Structure

scholarly journals Monolayer Graphene Can Emit SHG Waves

2017 ◽  
Vol 3 (1) ◽  
Author(s):  
David N. Carvalho ◽  
Fabio Biancalana ◽  
Andrea Marini
Keyword(s):  
Dirac Equation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Normal Incidence ◽  
Monolayer Graphene ◽  
Harmonic Waves ◽  
Two Dimensional ◽  
Wide Range ◽  
Two Dimensional Materials ◽  
Breaking Mechanism

AbstractThe usually-held notion that monolayer graphene, a centrosymmetric system, does not allow even-harmonic generation when illuminated at normal incidence is challenged by the discovery of a peculiar effect we term the dynamical centrosymmetry breaking mechanism. This effect results in a global pulse-induced oscillation of the Dirac cones which in turn produces second harmonic waves. We prove that this result can only be found by using the full Dirac equation and show that the widely used semiconductor Bloch equations fail to reproduce this and some other important physics of graphene. These results clear the way for further investigation concerning nonlinear light-matter interactions in a wide range of two-dimensional materials admitting either a gapped or ungapped Dirac-like spectrum.

Generation of conical second harmonic waves by nonlinear Bragg diffraction in two-dimensional nonlinear photonic structures

2007 ◽  
Author(s):  
Solomon M. Saltiel ◽  
Dragomir N. Neshev ◽  
Wieslaw Krolikowski ◽  
Robert Fischer ◽  
Ady Arie ◽  
...  
Keyword(s):  
Second Harmonic ◽  
Bragg Diffraction ◽  
Harmonic Waves ◽  
Two Dimensional ◽  
Photonic Structures

Second harmonic generation in a two-dimensional diatomic lattice

2000 ◽  
Vol 62 (21) ◽  
pp. 14105-14112 ◽  
Author(s):  
A. L. Gonçalves ◽  
V. V. Konotop
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Two Dimensional

scholarly journals Strong second harmonic generation in SiC, ZnO, GaN two-dimensional hexagonal crystals from first-principles many-body calculations

2015 ◽  
Vol 17 (14) ◽  
pp. 9533-9540 ◽  
Author(s):  
C. Attaccalite ◽  
A. Nguer ◽  
E. Cannuccia ◽  
M. Grüning
Keyword(s):  
Second Harmonic Generation ◽  
Real Time ◽  
Harmonic Generation ◽  
First Principles ◽  
Function Theory ◽  
Second Harmonic ◽  
Two Dimensional ◽  
Many Body ◽  
Ti:Sapphire Laser ◽  
Hexagonal Crystals

By using a real-time approach based on Green's function theory we predict a strong second-harmonic generation (SHG) for frequencies at which Ti:sapphire laser operates and for which the materials are transparent.

scholarly journals Enhanced second-harmonic generation from two-dimensional MoSe2 by waveguide integration

2017 ◽  
Author(s):  
Haitao Chen ◽  
Vincent Corboliou ◽  
Alexander S. Solntsev ◽  
Duk-Yong Choi ◽  
M.A. Vincenti ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Two Dimensional
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