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Method for integrating magneto-optic waveguide by utilizing magnetic nanomaterial ion exchange uniwafer

A technology of ion exchange and monolithic integration, which is applied in the direction of optical waveguide light guide, light guide, nonlinear optics, etc., can solve the problems that optical waveguide does not have magneto-optical performance, the optical window of magnetic film has large absorption, and cannot guarantee optical performance. The preparation method is simple and fast, the effect of improving waveguide transmission efficiency and avoiding additional loss

Active Publication Date: 2018-11-30
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The research on glass-based magneto-optical waveguides has begun to attract attention. At present, there are two main challenges in the integration of magneto-optical properties of waveguides on glass substrates: on the one hand, optical waveguides prepared on glass generally do not have magneto-optical properties, and must be constructed on waveguides. Magnetic thin film, resulting in increased waveguide optical loss
On the other hand, the constructed magnetic film absorbs a lot in the common optical window and is opaque, so it cannot guarantee good optical performance.

Method used

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  • Method for integrating magneto-optic waveguide by utilizing magnetic nanomaterial ion exchange uniwafer

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Embodiment 1

[0022] 1) Generate Fe 3 o 4 &Ag nano core shell material: 0.5gFeSO 4 .7H 2 O, 0.16g FeCl 3 .6H 2 O, and 0.1g PEG were mixed in 20mL of water and stirred continuously, and 10 mL of NaOH aqueous solution (10 mmol) was continuously added dropwise. Fe 3+ and Fe 2+ The molar ratio is controlled at 1.8:1, and 15 milliliters of Ag(NH 3 ) 2+ Aqueous solution (1 mg / mL) was directly added to the reaction solution at room temperature and kept stirring. After centrifugation (4000 rpm), a black to brown precipitate was slowly formed, and the excess reactant was repeatedly washed with water and acetone solution to obtain Fe 3 o 4 &Ag nano core-shell material. 2) Preparation of magneto-optical glass: PbO, Bi 2 o 3 , B 2 o 3 and Na 2 O oxide is used as the raw material to calculate, weigh and stir evenly according to the molar ratio of 45%, 45%, 8% and 2%, then add 100% Al 2 o 3 Melt in the crucible at 900 degrees Celsius for 1 hour, then quickly pour it onto a copper pl...

Embodiment 2

[0026] 1) Generate Fe 3 o 4 &Ag nano core shell material: 0.5gFeSO 4 .7H 2 O, 0.16g FeCl 3 .6H 2 O, and 0.1g PEG were mixed in 20mL of water and stirred continuously, and 10 mL of NaOH aqueous solution (10 mmol) was continuously added dropwise. Fe 3+ and Fe 2+ The molar ratio is controlled at 1.8:1, and 15 milliliters of Ag(NH 3 ) 2+ Aqueous solution (1 mg / mL) was directly added to the reaction solution at room temperature and kept stirring. After centrifugation (4000 rpm), a black to brown precipitate was slowly formed, and the excess reactant was repeatedly washed with water and acetone solution to obtain Fe 3 o 4 &Ag nano core-shell material. 2) Preparation of magneto-optical glass: PbO, Bi 2 o 3 , B 2 o 3 and Na 2 O oxide is used as the raw material to calculate, weigh and stir evenly according to the molar ratio of 45%, 45%, 8% and 2%, then add 100% Al 2 o 3 Melt in the crucible at 900 degrees Celsius for 1 hour, then quickly pour it onto a copper pl...

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Abstract

The invention discloses a method for integrating magneto-optic waveguide by utilizing magnetic nanomaterial ion exchange uniwafer. The method comprises the following steps: preparing magneto-optic glass containing 45%of PBO, 45% of Bi2O3, 8% of B2O3 and 2% of Na2O by adopting a process of melt-quench, and performing surface hydrophilic activation treatment, and generating a Fe3o4&Ag nano-nuclear-shell material at normal temperature a through sol-gel process; depositing the Fe3O4&Ag nano-nuclear-shell material on the surface of the magneto-optic glass, thereby enabling the Fe3O4&Ag nano-nuclear-shell material and the magneto-optic glass to make ion exchange to realize magneto-optic waveguide preparation. The tedious preparation process and structure of the existing magneto-optic waveguide are avoided, the ion exchange directly occurs between the glass and the coating layer on the surface of the magneto-optic glass through a mature heat penetration technology, the local refractive indexof the glass surface is changed, thereby in-situ generating the magneto-optic plane waveguide. The method has the advantages of being simple in preparation method, mild in reaction condition, low in energy consumption, environment-friendly, simple in preparation flow and operation, and easy to master the skill.

Description

technical field [0001] The invention relates to the technical field of magneto-optical planar waveguide preparation, in particular to a method for preparing a magneto-optic glass-based magneto-optic planar waveguide. Background technique [0002] Due to the urgent needs of magneto-optical current sensors, integrated magneto-optical isolators, optical sensing and optical communication integrated circuits, the integration of magneto-optical functions of optical sensor chips has become a new research hotspot in the field of optoelectronics and biochips. Monolithic integration of magnetic nanomaterials to realize magneto-optical waveguides has received unprecedented attention. [0003] Whether making magneto-optical TE-TM mode-coupled waveguides or magneto-optic non-reciprocal phase-shifting waveguides, three problems need to be solved: the acquisition of high magneto-optic active materials, the refractive index matching between heterogeneous materials, and the magneto-optic mat...

Claims

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Application Information

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IPC IPC(8): G02F1/095G02B6/13G02B6/12C03C3/14C03B19/02
CPCC03B19/02C03C3/14G02B6/12G02B6/13G02B2006/12038G02F1/095
Inventor 陈秋玲
Owner HENAN UNIVERSITY OF TECHNOLOGY