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Studies on the Optical Properties of Niobic Tellurite Oxide Glass and Cyanine Thin Films

Author: ZhaoZhenYu
Tutor: SunZhenRong
School: East China Normal University
Course: Optics
Keywords: Tellurium niobium oxide glass Heavy metal oxygen bad matter Lanthanide oxides Cyanine Spin-coated film Structure Third-order nonlinear optical susceptibility Laser-induced transient grating
CLC: O484.41
Type: Master's thesis
Year: 2005
Downloads: 59
Quote: 0
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Abstract

The rapid development of information technology in today's society, based all-optical communications, optical switching, optical storage and optical logic system devices, has huge potential concern. Nonlinear optical materials for device development plays a technical support role in this area, in recent years, an endless stream of related research of nonlinear optical materials. Currently the most talked about non-linear optical materials including semiconductor materials, organic polymer materials and nonlinear optical glass materials. The third-order nonlinear optical properties of nonlinear optical glass material, though not part of the organic polymer materials and semiconductor crystal materials, but it has a comprehensive quality factor is much higher than the other two and fiber coupling performance. At the same time, has excellent thermal and chemical stability; organic cyanine dye in a wide range of applications in the field of optical imaging, photochemistry, nonlinear characteristics is gradually attention, especially organic materials can be prepared optoelectronic thin film ; above two materials preparation process simpler and lower cost, and thus become the recent research focus. Nonlinear optical glass material tellurite glass material by virtue of excellent quality, high third-order nonlinear optical susceptibility, ultrafast optical response, wide infrared through the window, good chemical stability and low melting temperature of concern niobium tellurite system based on a new type of tellurium acid He system heavy metal oxide glass showed excellent quality, great promise as production of new optical devices ideal material. In the present study, we study TeO2-Nb2O5-ZnO system TeO2-Nb2O5-TiO2 system heavy metal oxide glass and incorporation of appropriate rare earth ions in the glass network structure and the relationship between the linear and nonlinear optical properties and explore the main conclusions are as follows: 1. use of forward degenerate four-wave mixing (DFWM) measurement TeO2-Nb2O5-TiO2 system glass of third-order nonlinear susceptibility X (3), 120-156 × 10-13esu noon time of up to 53ps middleweight, systematic analysis of the network to form alternate TeO2 body with the network modification body Nb2O5 and TiO2 content of the change in the local structure of the glass to explore the nonlinear optical effect from the Te-O ligand electronic the cloud polarization; 2. TeO2-Nb2O5-ZnO system glass mixed lanthanide ions, the third-order nonlinear optical properties can be better. Containing 0 1 0 25 0 5wt% of Eu3 TeO2-Nb2O5-ZnO system glass in 532nm at X (3) value with the rise of the Eu3 enhance to explore Eu3 the 4f 5d orbital electron cloud distortion third-order nonlinear polarization contribution; 3. incorporation of the lanthanide oxide material (Lu2O3, Dy2O3) after glass optical nonlinearities by rare earth

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