Optical properties of GaAs/Ga 1-xAlxAs ridge quantum wire: Third-harmonic generation

2012 ◽  
Vol 285 (6) ◽  
pp. 1233-1237 ◽  
Author(s):  
R. Khordad ◽  
B. Mirhosseini
Keyword(s):  
Optical Properties ◽  
Harmonic Generation ◽  
Quantum Wire ◽  
Third Harmonic Generation ◽  
Third Harmonic

Growth and highly efficient third harmonic generation of ammonium dihydrogen phosphate crystals

RSC Advances ◽  
2016 ◽  
Vol 6 (40) ◽  
pp. 33983-33989 ◽  
Author(s):  
Xi Feng ◽  
Lili Zhu ◽  
Fuquan Li ◽  
Fang Wang ◽  
Wei Han ◽  
...  
Keyword(s):  
Optical Properties ◽  
Harmonic Generation ◽  
Third Harmonic Generation ◽  
Dihydrogen Phosphate ◽  
Ammonium Dihydrogen Phosphate ◽  
Third Harmonic ◽  
Highly Efficient

ADP crystals were grown, and their optical properties including third harmonic generation were measured.

Nonlinear Optical Properties of Two Thiophene-Based Polyconjugated Systems: Photoinduced Absorption and Third Harmonic Generation Spectroscopy

1989 ◽  
Vol 173 ◽  
Author(s):  
R. Zamboni ◽  
C. Taliani ◽  
G. Ruani ◽  
A. J. Pal ◽  
F. Kajzar
Keyword(s):  
Optical Properties ◽  
Conjugated Polymers ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Third Harmonic Generation ◽  
Nonlinear Optical Properties ◽  
Photoinduced Absorption ◽  
Third Harmonic ◽  
Optical Gap ◽  
The Third

ABSTRACTNonlinear optical properties of two thiophene-based conjugated polymers (PTT and PDTB) were studied by the photoinduced absorption spectroscopy and the third harmonic generation spectroscopy. The results obtained with these two methods are used to estimate the value of χ(3) in these materials. Resonant χ(3) are (2.0 ± 0.2) × 10−11 e.s.u. and (1.0 ± 0.1) × 10−11 e.s.u. for PTT and PDTB, respectively. χ(3) is shown to be related to the width of the optical gap through a sixth-power law. In PTT a vibronic structure due to the C = C stretching mode appears in the χ(3) spectrum.

scholarly journals Effects of an External Magnetic Field on the Interband and Intraband Optical Properties of an Asymmetric Biconvex Lens-Shaped Quantum Dot

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 60
Author(s):  
Mher A. Mkrtchyan ◽  
David B. Hayrapetyan ◽  
Eduard M. Kazaryan ◽  
Hayk A. Sarkisyan ◽  
Maxim Ya. Vinnichenko ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Optical Properties ◽  
External Magnetic Field ◽  
Quantum Dot ◽  
Harmonic Generation ◽  
Third Harmonic Generation ◽  
Photoluminescence Spectra ◽  
Third Harmonic ◽  
Different Temperatures ◽  
Linear And Nonlinear

The theoretical investigation of interband and intraband transitions in an asymmetric biconvex lens-shaped quantum dot are considered in the presence of an external magnetic field. The selection rules for intraband transitions are obtained. The behaviors of linear and nonlinear absorption and photoluminescence spectra are observed for different temperatures and magnetic field strengths. The second and third harmonic generation coefficients as a function of the photon energy are examined both in the absence and presence of an external magnetic field.

Defect engineering, microstructural examination and improvement of ultrafast third harmonic generation in GaZnO nanostructures: a study of e-beam irradiation

2020 ◽  
Vol 22 (7) ◽  
pp. 4252-4265 ◽  
Author(s):  
Albin Antony ◽  
Poornesh P. ◽  
I. V. Kityk ◽  
K. Ozga ◽  
J. Jedryka ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electron Beam ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Third Harmonic Generation ◽  
Beam Irradiation ◽  
Defect Engineering ◽  
Third Harmonic ◽  
Doped Zno ◽  
Microstructural Examination

Electron beam induced effects on defect engineering and structural, morphological and optical properties of Ga doped ZnO (GaZnO) nanostructures for improved ultrafast nonlinear optical properties are presented.

DEVELOPMENT OF NEW NLO BORATE CRYSTALS

2001 ◽  
Vol 10 (02) ◽  
pp. 249-263 ◽  
Author(s):  
TAKATOMO SASAKI ◽  
YUSUKE MORI ◽  
MASASHI YOSHIMURA
Keyword(s):  
Optical Properties ◽  
Solid State ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Uv Light ◽  
Third Harmonic Generation ◽  
Industrial Applications ◽  
Third Harmonic ◽  
Light Generation ◽  
Uv Lasers

Interests in the use of borate crystals in ultraviolet nonlinear optics have increased because all-solid-state UV lasers obtained with NLO crystals are in highly demand for scientific and industrial applications. Recently, new borate crystals, CsLiB 6 O 10 and Gd x Y 1-x Ca 4 O ( BO 3)3 have been developed by the present authors. CsLiB 6 O 10 is for fourth- and fifth-harmonic generations of Nd:YAG laser, Gd x Y 1-x Ca 4 O ( BO 3)3 for third-harmonic generation. This paper reviews the growth and nonlinear optical properties of these new borate crystals and the progress in UV light generation.

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.

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