Nonlinear optical properties of TeO 2 -P 2 O 5 - ZnO-LiNbO 3 glass doped with Er 3+ ions
| Autor: | R. Miedzinski, I. Fuks-Janczarek, Y. El Sayed Said |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Lithium niobate Physics::Optics Crystal growth 02 engineering and technology 01 natural sciences Two-photon absorption Ion Inorganic Chemistry Condensed Matter::Materials Science chemistry.chemical_compound Optics Condensed Matter::Superconductivity 0103 physical sciences Electrical and Electronic Engineering Physical and Theoretical Chemistry Absorption (electromagnetic radiation) Spectroscopy 010302 applied physics Condensed matter physics Dopant business.industry Organic Chemistry Doping 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Nonlinear system chemistry 0210 nano-technology business |
| Zdroj: | Optical Materials. 60:456-461 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2016.08.033 |
| Popis: | A series of lithium niobate LiNbO3 (LN) single crystals doped with Er3+ were grown under the same conditions by melt-quenching method. The distribution coefficients of rare-earth (RE) elements in the ”crystal-melt” system of LN were determined at the beginning of the crystal growth. Their dependence on the dopant concentration in melt for 0.4 and 0.8 wt % was investigated. The procedure is applied to RE-doped lithium niobate (LiNbO3), a material of great interest for optoelectronic applications. We have obtained the real χ R ( 3 ) and imaginary parts χ I ( 3 ) of the third-order, nonlinear optical susceptibility to the nonlinear refractive index n2 and the nonlinear absorption coefficient β that are valid for absorbing systems. We show that nonlinear refractive or absorptive effects are the consequence of the interplay between the real and imaginary parts of the third-order susceptibilities of the materials. The method for measuring non-linear absorption coefficients and nonlinear refractive index based on well-known Z-scan is presented. |
| Databáze: | OpenAIRE |
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