A method for ion-exchanging monolithically integrated magneto-optical waveguides using magnetic nanomaterials

An ion-exchange, monolithic integration technology, applied in optical waveguides, light guides, nonlinear optics, etc., can solve the problems of large absorption of magnetic film optical windows, optical waveguides without magneto-optical performance, and inability to guarantee optical performance, etc. The preparation method is simple and fast, the transmission efficiency of the waveguide is improved, and the effect of avoiding additional loss

Active Publication Date: 2021-07-27
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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  • A method for ion-exchanging monolithically integrated magneto-optical waveguides using magnetic nanomaterials
  • A method for ion-exchanging monolithically integrated magneto-optical waveguides using magnetic nanomaterials
  • A method for ion-exchanging monolithically integrated magneto-optical waveguides using magnetic nanomaterials

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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 plat...

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 plat...

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Abstract

The invention discloses a method for ion-exchanging monolithic integrated magneto-optical waveguides using magnetic nanometer materials. The method adopts melt quenching process to prepare 45%PbO‑45%Bi 2 o 3 -8%B 2 o 3 ‑2%Na 2 O magneto-optical glass is treated with surface hydrophilic activation, and Fe is generated at room temperature through sol-gel process 3 o 4 &Ag nano core shell material. Deposition of Fe on the surface of magneto-optical glass 3 o 4 &Ag nano core-shell materials enable them to undergo ion exchange at 260-275°C to realize the preparation of magneto-optical waveguides. The present invention avoids the complex preparation process and structure of the existing magneto-optical waveguide, directly on the surface of the magneto-optic glass through the mature thermal penetration technology to make ion exchange between the glass and the coating layer, change the local refractive index of the glass surface, and generate in situ Magneto-optic planar waveguides. The invention has the advantages of simple preparation method, mild reaction conditions, low energy consumption, environmental friendliness, simple preparation process and easy technology mastery.

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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Patent Type & Authority Patents(China)
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
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