Third-harmonic generation in a quantum wire with triangle cross section

2012 ◽  
Vol 46 ◽  
pp. 84-88 ◽  
Author(s):  
R. Khordad ◽  
S. Tafaroji
Keyword(s):  
Cross Section ◽  
Harmonic Generation ◽  
Quantum Wire ◽  
Third Harmonic Generation ◽  
Third Harmonic

The energy levels, binding energy and third harmonic generation of a hexagon-shaped quantum wire

2015 ◽  
Vol 29 (15) ◽  
pp. 1550078 ◽  
Author(s):  
R. Khordad ◽  
H. Bahramiyan
Keyword(s):  
Finite Element Method ◽  
Harmonic Generation ◽  
Quantum Wire ◽  
Nonlinear Optical ◽  
Energy Levels ◽  
Third Harmonic Generation ◽  
Matrix Elements ◽  
Third Harmonic ◽  
Energy Eigenvalues ◽  
And Shifts

In this paper, we have studied the effect of impurity on the energy levels and nonlinear optical properties of a hexagon-shaped quantum wire using finite element method (FEM). We have obtained the energy eigenvalues, their corresponding eigenfunctions and third harmonic generation (THG) with and without impurity for different sizes of inner a1 and outer a2 hexagons. It is found that all energy levels are decreased with increasing a1. There is degeneracy between energy levels without impurity. But, there is no degeneracy between the energy levels in the presence of impurity. The dipole matrix elements are increased with enhancing hexagon sizes without impurity. But, these elements have complex behaviors with impurity. The THG increases and shifts toward lower energies by enhancing a1. The influence of a2/a1 on THG is not large when a2/a1 > 2. The THG shifts toward lower energies by increasing impurity position.

scholarly journals Ultrafast Third-Order Nonlinear Optical Response Excited by fs Laser Pulses at 1550 nm in GaN Crystals

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3194
Author(s):  
Adrian Petris ◽  
Petronela Gheorghe ◽  
Tudor Braniste ◽  
Ion Tiginyanu
Keyword(s):  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Laser Pulses ◽  
Third Harmonic Generation ◽  
High Repetition Rate ◽  
Third Order ◽  
Third Harmonic ◽  
The Third ◽  
High Repetition ◽  
Gan Crystal

The ultrafast third-order optical nonlinearity of c-plane GaN crystal, excited by ultrashort (fs) high-repetition-rate laser pulses at 1550 nm, wavelength important for optical communications, is investigated for the first time by optical third-harmonic generation in non-phase-matching conditions. As the thermo-optic effect that can arise in the sample by cumulative thermal effects induced by high-repetition-rate laser pulses cannot be responsible for the third-harmonic generation, the ultrafast nonlinear optical effect of solely electronic origin is the only one involved in this process. The third-order nonlinear optical susceptibility of GaN crystal responsible for the third-harmonic generation process, an important indicative parameter for the potential use of this material in ultrafast photonic functionalities, is determined.

scholarly journals Energy exchange during third harmonic generation in multi-mode optical fibers

2021 ◽  
Vol 1859 (1) ◽  
pp. 012050
Author(s):  
Z Kasapeteva ◽  
A Dakova ◽  
V Slavchev ◽  
D Dakova ◽  
L Kovachev ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Harmonic Generation ◽  
Energy Exchange ◽  
Third Harmonic Generation ◽  
Third Harmonic ◽  
Multi Mode

scholarly journals A femtosecond Raman generator for long wavelength two-photon and third harmonic generation imaging

APL Photonics ◽  
2016 ◽  
Vol 1 (9) ◽  
pp. 091303
Author(s):  
J. Trägårdh ◽  
J. Schniete ◽  
M. Parsons ◽  
G. McConnell
Keyword(s):  
Harmonic Generation ◽  
Third Harmonic Generation ◽  
Third Harmonic ◽  
Long Wavelength ◽  
Two Photon

Poly(pyridine-2,5-diyl) Containing Indigo Unit and Optical Third Harmonic Generation from Its Film

1994 ◽  
Vol 23 (5) ◽  
pp. 913-914 ◽  
Author(s):  
Takakazu Yamamoto ◽  
Kenichi Kizu ◽  
Tsukasa Maruyama ◽  
Naoki Ooba ◽  
Satoru Tomaru ◽  
...  
Keyword(s):  
Harmonic Generation ◽  
Third Harmonic Generation ◽  
Third Harmonic
Sign in / Sign up

Export Citation Format

Share Document