Results 161 to 170 of about 17,573 (205)

Comparison between quantum mechanical computations of NLO properties and experimental data in selected functionalized azo-dyes [PDF]

open access: yes2012 14th International Conference on Transparent Optical Networks (ICTON), 2012
Nonlinear optical (NLO) materials have been extensively studied for many years. The search of new materials with NLO properties is an important research field. Significant interest still exists in the design and development of materials exhibiting large second and third-order NLO response because of the potential application in optoelectronics devices.
Sahraoui, B.   +4 more
openaire   +4 more sources

A Computation Effective Range-Based 3D Mapping Aided GNSS with NLOS Correction Method

Journal of Navigation, 2020
Global navigation satellite system (GNSS) positioning in dense urban areas remains a challenge due to the signal reflection by buildings, namely multipath and non-line-of-sight (NLOS) reception. These effects degrade the performance of low-cost GNSS receivers such as in those smartphones.
Hoi-Fung Ng, Guohao Zhang, Li-Ta Hsu
openaire   +2 more sources

A comprehensive experimental and computational study of highly efficient organic NLO crystal: Anilinium -L-Tartrate

Optics & Laser Technology, 2021
Abstract In the field of nonlinear optics, the organic materials have new corners compared to inorganic materials. Aniline as well as tartrate possesses high nonlinear optical behaviour especially for second harmonic generation. Single crystals of Anilinium-L-Tartrate (ALT) salt is grown from solution growth technique.
N. Sudha   +3 more
openaire   +1 more source

Implementation of NLO QCD corrections into the framework of computer system SANC

Physics of Particles and Nuclei Letters, 2007
The QCD sector of the system SANC is presented. The QCD theoretical predictions for several processes of high-energy interactions of fundamental particles at the one-loop precision level for up to some 3- and 4-particle processes are implemented. ·¥¤¸E ¢²¥´μ ¸μ¸EμO´¨¥ S•„-¸¥±Eμ· ¢ ¸¨¸E¥³¥ SANC.
A. Andonov   +5 more
openaire   +1 more source

First Principle Study of Electronic and Non-Linear Optical (NLO) Properties of Triphenylamine Dyes: Interactive Design Computation of New NLO Compounds

Australian Journal of Chemistry, 2015
In this study, density functional theory and time-dependent density functional theory are used to determine how the size of p-conjugated system influences the absorption spectra and non-linear optical (NLO) properties of dyes. Double and triple bonds, as well the benzene rings, are used in conjugated systems.
Muhammad Ramzan Saeed Ashraf Janjua   +8 more
openaire   +1 more source

Quantum chemical computations, vibrational spectroscopic studies, NLO and NBO/NLMO analysis of o-chlorobenzohydrazide

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2014
The molecular vibrations of o-chlorobenzohydrazide (OCBH) have been investigated in polycrystalline sample, at room temperature, by recording Fourier transform infrared (FT-IR) and FT-Raman spectroscopies. The complete vibrational assignment and analysis of the fundamental modes was carried out using the experimental data and quantum chemical studies ...
E, Gobinath, R John, Xavier
openaire   +2 more sources

Automation of NLO Computations

2016
In this chapter, we present a brief introduction to the MadGraph5_aMC@NLO [1] framework, which is the first public code to perform NLO level computation and match to parton shower automatically. For the users who are interested in the details, we suggest them to read our recent publication Ref. [1].
openaire   +1 more source

Static- and frequency-dependent NLO properties of dithienothiophene and thienothiophene bridges — A computational investigation

Journal of Theoretical and Computational Chemistry, 2020
We have explored detailed linear and nonlinear optical properties of push-pull systems bearing thienothiophene and dithienothiophene spacers. By using density functional theory (DFT), frequency-dependent strategies were applied to examine the polarizability ([Formula: see text] and hyperpolarizability ([Formula: see text] and [Formula: see text].
Sagar B. Yadav, Nagaiyan Sekar
openaire   +1 more source

NLO Computations and Automation Philosophy

2016
In this chapter, we will give a brief introduction to the relevant background of the second part. It consists of three aspects. After we present some general remarks in Sect. 7.1, we will introduce the basic concepts of NLO computations, including IR and ultraviolet (UV) divergences cancellations. Finally, we will emphasize the automation philosophy.
openaire   +1 more source

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