Electric Susceptibility

2019 ◽  
Author(s):  
Galina Nemova
Keyword(s):  
Electric Susceptibility

Application of MeV Ion Implantation in the Formation of Nano-Metallic Clusters in Silica

1996 ◽  
Vol 457 ◽  
Author(s):  
D. Ila ◽  
Z. Wu ◽  
R. L. Zimmerman ◽  
S. Sarkisov ◽  
C. C. Smith ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Optical Absorption ◽  
Rutherford Backscattering Spectrometry ◽  
Treatment Temperature ◽  
Gold Clusters ◽  
Third Order ◽  
The Third ◽  
Pure Silica ◽  
Photorefractive Materials ◽  
Electric Susceptibility

ABSTRACTThe implantation of metal ions into photorefractive materials followed by thermal annealing leads to an increase in resonance optical absorption as well as an enhancement of the nonlinear optical properties. We have implanted ions of Au (3.6 MeV), Ag (1.5 MeV) and Cu (2.0 MeV) into pure silica followed by careful heat treatment. Using optical absorption spectrophotometry and rutherford backscattering spectrometry we have measured the cluster size for each heat treatment temperature and determined the activation energies for their formation. The third order electric susceptibility for silica with 2 nm gold clusters has been determined by Z-scan to be 65×10−8 esu.

scholarly journals Active Metamaterials with Negative Static Electric Susceptibility

2020 ◽  
Vol 32 (9) ◽  
pp. 1904863
Author(s):  
Flynn Castles ◽  
Julian A. J. Fells ◽  
Dmitry Isakov ◽  
Stephen M. Morris ◽  
Andrew A. R. Watt ◽  
...  
Keyword(s):  
Active Metamaterials ◽  
Electric Susceptibility

scholarly journals XI. On the dependence of the refractive index of gases on temperature

1903 ◽  
Vol 201 (331-345) ◽  
pp. 435-455 ◽  
Keyword(s):  
Refractive Index ◽  
Temperature Effect ◽  
Theoretical Formula ◽  
Related Property ◽  
Actual Temperature ◽  
Theoretical Investigations ◽  
Electric Susceptibility

The importance of this question was first impressed on me in the course of some theoretical investigations on refraction in gases and the closely related property of electric susceptibility. A comparison of the actual temperature effect on a property of a body, with a theoretical formula professing to explain the property, is a very severe test, and one which has proved fatal to many theories.

scholarly journals Electronic Structure, Spectroscopic (IR, Raman, UV-Vis, NMR), Optoelectronic, and NLO Properties Investigations of Rubescin E (C31H36O7) Molecule in Gas Phase and Chloroform Solution Using Ab Initio and DFT Methods

2019 ◽  
Vol 2019 ◽  
pp. 1-22 ◽  
Author(s):  
Richard Arnaud Yossa Kamsi ◽  
Geh Wilson Ejuh ◽  
Fidèle Tchoffo ◽  
Pierre Mkounga ◽  
Jean-Marie Bienvenu Ndjaka
Keyword(s):  
Electronic Structure ◽  
Chloroform Solution ◽  
3D Analysis ◽  
Coupling Constant ◽  
Dft Methods ◽  
Reactivity Descriptors ◽  
H Nmr ◽  
Quantum Chemical Methods ◽  
Td Dft ◽  
Electric Susceptibility

Quantum chemical methods were used to study the electronic structure and some physicochemical properties of Rubescin E molecule. Good agreement with experiment was found for J3H-H coupling constant, IR, 1H NMR, and 13C NMR. The excitation energy and oscillator strength calculated by TD-DFT also complement with experiment. Large values were obtained for dipole moment, polarizability, first static hyperpolarizability, electric susceptibility, refractive index, and dielectric constant, meaning that Rubescin E has strong optical and phonon application and can be a good candidate as NLOs material. The 3D analysis of the title molecule leads us to the conclusion that electron can easily be transferred from furan to tetrahydrofuran ring. The global reactivity descriptors were evaluated. Mulliken, ESP, and NBO charges comparisons were carried out and described.

Development of a New Glass for both Visible and Near-Infrared Optical Applications

2018 ◽  
Vol 786 ◽  
pp. 224-235
Author(s):  
Hytham Abdelghany El-Ghany
Keyword(s):  
Optical Materials ◽  
Nonlinear Optical ◽  
Near Infrared ◽  
Nonlinear Optical Materials ◽  
Melt Quenching ◽  
Nd:Yag Lasers ◽  
Near Ir ◽  
Prepared Glass ◽  
Optical Applications ◽  
Electric Susceptibility

A glass system of composition 40P2O5-40ZnO-(20-x)Na2O-xCdO (where, x = 1, 2, 3, 4, 5 and 6 mol%) was prepared using the conventional melt quenching technique. The glass formability of the prepared samples was inspected using XRD technique. Archimedes’ method was used to determine the density of the prepared glass samples then the molar volume was calculated. The optical spectroscopic investigations of the prepared glass samples were carried out over the spectral range (190-2500 nm). The proposed glass showed a successive transparency in both visible and near-IR ranges of spectrum till 2500 nm with considerably high transmission of about 78%. The refractive index of the glass samples with some other useful parameters such as dielectric constant, electric susceptibility and electronic polarizability of the prepared glass were evaluated. The results suggest the practicality of utilizing such new glass in the fabrication of optical supplies such as lenses and optical windows used for Nd:YAG lasers. The metallization criteria data of the prepared glass propose a good basis for predicting new nonlinear optical materials.

Sign in / Sign up

Export Citation Format

Share Document