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Cleaning method of glazed surface of YCOB crystal

A technology for polishing surfaces and crystals, applied in the directions of cleaning methods using liquids, cleaning methods and utensils, chemical instruments and methods, etc., to achieve the effect of high cleaning efficiency and high damage threshold

Inactive Publication Date: 2012-12-19
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relevant report on the effective cleaning method of YCOB crystal at home and abroad.

Method used

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  • Cleaning method of glazed surface of YCOB crystal
  • Cleaning method of glazed surface of YCOB crystal
  • Cleaning method of glazed surface of YCOB crystal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Cleaning steps:

[0026] 1) Gently wipe the polished surface of the YCOB crystal with a cotton swab dipped in acetone;

[0027] 2) Put the wiped crystal sample in cleaning tank 1;

[0028] 3) Add an alkaline solution into the cleaning tank 1 to clean the sample, and the temperature of the solution is room temperature;

[0029] 4) The ratio of the alkaline solution is NH 4 OH:H 2 o 2 :H 2 O=1:8:40;

[0030] 5) The order of preparation of the alkaline solution is: deionized water, hydrogen peroxide and ammonia water;

[0031] 6) Ultrasound at 40KHz and 120KHz for 2 minutes successively;

[0032] 7) Place the sample in the cleaning tank 2, rinse it with deionized water for 3 times, and the temperature of the deionized water is room temperature;

[0033] 8) Add deionized water into the cleaning tank 3, and place the sample in the cleaning tank 3;

[0034] 9) Ultrasound for 3 minutes successively at 40KHz and 120KHz frequencies;

[0035] 10) Take out the sample,...

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Abstract

The invention relates to a cleaning method of a glazed surface of YCOB crystal. The method comprises the specific steps of: lightly wiping the glazed surface of the YCOB crystal by a cotton swab carrying acetone; putting the wiped YCOB crystal into a first cleaning groove, adding an alkaline solution to the first cleaning groove to clean the sample, wherein the solution temperature is the room temperature; the volume ratio of the alkaline solution is that NH4OH to H2O2 to H2O is 1 to 8 to 40; orderly carrying out ultrasound treatment on the obtained solution for 2-4 minutes at the frequencies of 20KHz-60KHz and 80KHz-160KHz; putting the obtained sample into a second cleaning groove; rinsing with deionized water, wherein the temperature of the deionized water is the room temperature; putting the sample into a third cleaning groove; adding the deionized water to the third cleaning groove; respectively carrying out ultrasound treatment for 3-6 minutes at the frequencies of 20KHz-60KHz and 80KHz-160KHz; taking out the sample, repeatedly cleaning and drying the sample to obtain the required product. The cleaning method has the advantages that the glazed surface of the YCOB crystal is not damaged, the defects on the internal part and surface of the crystal are avoided, and the crystal has a high damage threshold after being coated, while high cleaning efficiency is achieved, and organic pollutant and contamination particles on the surface are effectively removed.

Description

technical field [0001] The invention relates to a cleaning method combining alkaline solution and ultrasonic waves, in particular to a cleaning method for the polished surface of YCOB crystal. Background technique [0002] Calcium yttrium borate (YCa 4 O(BO 3 ) 3 , YCOB) crystal is a new type of nonlinear optical crystal developed in recent years. With its balanced performance in nonlinear optical properties, ease of single crystal preparation, and ability to resist light damage, it has become an important frequency conversion Crystal materials with nonlinear optics. It has a large nonlinear coefficient, and has the advantages of wide transmission band, wide acceptance angle, small discrete angle, high damage threshold, good mechanical and chemical properties (no deliquescence, moderate hardness), etc. Therefore, it has broad application prospects in the development of frequency doubling, frequency combining, and parametric oscillation devices of high-power pulsed laser...

Claims

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Application Information

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IPC IPC(8): B08B3/08B08B3/12
Inventor 丁涛孙晓雁张锦龙程鑫彬焦宏飞沈正祥马彬王占山
Owner TONGJI UNIV
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