Transverse interactions in 2-D feedback non-linear optical systems

1990 ◽  
Vol 22 (6) ◽  
pp. 501-515 ◽  
Author(s):  
M. A. Vorontsov ◽  
N. I. Zheleznykh ◽  
V. Yu. Ivanov
Keyword(s):  
Optical Systems ◽  
Non Linear ◽  
Linear Optical

Growth and characterization of orientation patterned GaAs crystals for non-linear optical frequency conversion

2011 ◽  
Vol 1288 ◽  
Author(s):  
O. Martínez ◽  
M. Avella ◽  
V. Hortelano ◽  
J. Jiménez ◽  
M. Snure ◽  
...  
Keyword(s):  
Frequency Conversion ◽  
Optical Systems ◽  
Optical Frequency Conversion ◽  
Optical Propagation ◽  
Electro Optic ◽  
Non Linear ◽  
Si Doped ◽  
Linear Optical ◽  
Terahertz Lasers

ABSTRACTOrientation patterned (OP)-GaAs crystals have high potential as non linear optical systems. Mid-infrared and terahertz lasers sources can be fabricated with these crystals by frequency conversion from shorter wavelength sources. The optical propagation losses are critical; therefore, the OP-GaAs crystals must have high quality with low incorporation of defects and high homogeneity to reduce the refractive index fluctuations. Defects with electro-optic signature must be characterized in order to reduce their presence. Cathodoluminescence studies of these crystals permit the distribution of the main defects to be established, both extended and point defects. Special attention is paid to the role of the walls between the two domain orientations, and to the incorporation of impurities in Si-doped samples.

Experimental and Theoretical (ab initio and DFT) Analysis of UV-Vis Spectra, Thermodynamic Functions and Non-linear Optical Properties of 2-Chloro-3,4-Dimethoxybenzaldehyde

2015 ◽  
Vol 8 (2) ◽  
pp. 2122-2134
Author(s):  
Sarvendra Kumar ◽  
Rajesh Kumar ◽  
Jayant Teotia ◽  
M. K. Yadav
Keyword(s):  
Thermodynamic Functions ◽  
Title Compound ◽  
Density Functional ◽  
Structural Characteristics ◽  
Basis Sets ◽  
Ultraviolet Absorption Spectrum ◽  
Non Linear ◽  
Different Temperatures ◽  
Linear Optical Properties ◽  
Linear Optical

In the present work, UV- Visible spectra of 2-Chloro-3,4-Dimethoxybenzaldehyde (2,3,4-CDMB) compound  have been carried out experimentally and theoretically. The ultraviolet absorption spectrum of title compound in three solvents (Acetone, Diethyl Ether, CCl4) of different polarity were examined in the range of 200–500 nm. The structure of the molecule was optimized and the structural characteristics were determined by HF and DFT (B3LYP) methods with 6-31+G(d,p) and 6-311++G(d,p) as basis sets. The excitation energy, wavelength corresponds to absorption maxima () and oscillator strength (f) are calculated by Time-Dependent Density Functional Theory (TD-DFT) using B3LYP/6-31+G(d,p) and B3LYP/6-311++G(d,p) as basis sets. The electric dipole moment (μ), polarizability (α) and the first hyperpolarizability (β ) have been computed to evaluate the non-linear optical (NLO) response of the investigated compound by HF and DFT (B3LYP) with already mentioned basis sets. Thermodynamic functions of the title compound at different temperatures were also calculated.

scholarly journals Controlling the non-linear optical properties of MgO by tailoring the electronic structure

2020 ◽  
Vol 126 (3) ◽  
Author(s):  
Mukhtar Hussain ◽  
Hugo Pires ◽  
Willem Boutu ◽  
Dominik Franz ◽  
Rana Nicolas ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Non Linear ◽  
Linear Optical Properties ◽  
Linear Optical

Non-linear optical behavior of benzothiazole based chromophores: Second harmonic generation

2020 ◽  
Vol 183 ◽  
pp. 108739
Author(s):  
Shivani ◽  
Ishpreet Kaur ◽  
Karthika Chemmanghattu ◽  
Paramjit Kaur ◽  
Kamaljit Singh
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Non Linear ◽  
Linear Optical ◽  
Optical Behavior
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