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Application of titanium dioxide array membranes serving as second-order nonlinear optical materials

A second-order nonlinear and titanium dioxide technology, which is applied in nonlinear optics, optics, instruments, etc., can solve the problems of complex optical path design and high production cost, and achieve good physical and chemical stability, low production cost, and strong second harmonic generation performance effect

Inactive Publication Date: 2014-10-08
WUHAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing commercial second-order nonlinear optical crystal materials have remarkable macroscopic second harmonic generation performance, but the complex preparation process of cultivating large single crystals leads to relatively high preparation costs for second-order nonlinear optical crystal materials, and the phase matching The precise and strict requirements of the application process require complex optical path design

Method used

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  • Application of titanium dioxide array membranes serving as second-order nonlinear optical materials
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  • Application of titanium dioxide array membranes serving as second-order nonlinear optical materials

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Effect test

Embodiment 1

[0023] The application of titanium dioxide array film as a second-order nonlinear optical material, the titanium dioxide array film is composed of oriented titanium dioxide nanorods. The thickness of the aligned titanium dioxide nanorods is 20 microns, the diameter of the nanorods is 180-200 nm, and the crystal form of the titanium dioxide is rutile phase.

[0024] References for the preparation method of TiO2 nanorod arrays [Zeng T, Tao HZ, Sui XT, Zhou XD, Zhao XJ, Growth of free-standing TiO 2 nanorod arrays and its application in CdS quantum dots-sensitized solar cells, Chemical Physics Letters 2011, 508(1-3) 130-133], using a hydrothermal synthesis method, the specific steps are as follows:

[0025] First take 3mlTiCl 4 , 25ml of distilled water, 35ml of concentrated hydrochloric acid with a concentration of 37% are put into the hydrothermal kettle; then plated with SnO 2 The glass slide of the seed layer was placed in a hydrothermal kettle, the hydrothermal kettle was ...

Embodiment 2

[0029] The application of titanium dioxide array film as a second-order nonlinear optical material, the titanium dioxide array film is composed of oriented titanium dioxide nanotubes. The thickness of the aligned titanium dioxide nanotubes is 20 microns, the outer diameter of the nanotubes is 130-150 nm, the thickness of the tube wall is 20-30 nm, and the crystal form of the titanium dioxide is anatase phase.

[0030] References for the preparation method of TiO2 nanotube arrays [Wang XL, Zheng J, Sui XT, Xie H, Liu BS, Zhao XJ, CdS quantum dots sensitized solar cells based on free-standing and through-hole TiO2nanotube arrays, Dalton Transactions, 2013, 42 (41) 14726-14732], using the anodic oxidation method, the specific steps are as follows:

[0031] First, clean the titanium substrate and put it in a place containing 0.25wt.% NH 4 In the ethylene glycol solution of F, anodize at 50V for 20 hours; take out the anodized titanium sheet and put it into an oven with a temperat...

Embodiment 3

[0035] The application of titanium dioxide array film as a second-order nonlinear optical material, the titanium dioxide array film is composed of oriented titanium dioxide nanorods. The thickness of the aligned titanium dioxide nanorods is 4 microns, the diameter of the nanorods is 40-50 nm, and the crystal form of the titanium dioxide is rutile phase.

[0036] The second-order nonlinear optical properties of the titania nanorod arrays prepared above are given by figure 1 As shown in the evaluation of the Mack fringe method nonlinear optical performance tester. The second harmonic generation intensity of the titanium dioxide array film is 2.5 times that of a Y-cut quartz crystal with a thickness of 1 mm.

[0037]References for the preparation method of TiO2 nanorod arrays [Liu Bin, Eray S.Aydil, Growth of Oriented Single-Crystalline Rutile TiO2 Nanorods on Transparent Conducting Substrates for Dye-Sensitized Solar Cells, J.AM.CHEM.SOC.2009,131,3985– 3990], adopt the hydroth...

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Abstract

The invention belongs to the field of nonlinear optical materials, in particular to application of titanium dioxide array membranes serving as second-order nonlinear optical materials. The titanium dioxide array membranes are composed of titanium dioxide nanorods or titanium dioxide nanotubes arranged in an orientation mode. Compared with existing second-order nonlinear optical materials, the materials have the advantages that the high secondary harmonic generation performance is achieved; phase matching is easy to achieve, and optical path design can be simplified in the application process; the preparation technology is simple, raw materials are cheap, and the preparation cost is low; the materialization stability is good, and the comprehensive performance is good.

Description

technical field [0001] The invention relates to the application of a titanium dioxide array film as a second-order nonlinear optical material, which belongs to the field of nonlinear optical materials, and also belongs to the field of inorganic chemistry and material science. Background technique [0002] As an important basic material in the field of optics, nonlinear optical materials play an important role in the design and development of optical functional devices. Since the first discovery of the frequency doubling effect by Franken et al. in 1961, after years of theoretical and application development, nonlinear optics has gradually become an important branch in the field of optics. a wide range of applications. [0003] Considering its important role in the fields of optical communication, optical storage and laser remote sensing, the research and development of second-order nonlinear optical materials is a research hotspot at home and abroad. Existing commercial se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/355G02F1/37
Inventor 陶海征田甜杨红波韩学才赵修建
Owner WUHAN UNIV OF TECH
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