CN1027459C - 掺铬钨酸锌单晶的退火工艺 - Google Patents
掺铬钨酸锌单晶的退火工艺 Download PDFInfo
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- CN1027459C CN1027459C CN 92101723 CN92101723A CN1027459C CN 1027459 C CN1027459 C CN 1027459C CN 92101723 CN92101723 CN 92101723 CN 92101723 A CN92101723 A CN 92101723A CN 1027459 C CN1027459 C CN 1027459C
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- doped zinc
- chromium
- annealing
- annealing process
- powder
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- 238000000137 annealing Methods 0.000 title claims abstract description 24
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 title claims abstract description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000011701 zinc Substances 0.000 title claims abstract description 15
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 15
- 238000005516 engineering process Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 10
- 239000013078 crystal Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000007787 solid Substances 0.000 claims abstract description 4
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- ZMJPCIAEJKVKMQ-UHFFFAOYSA-M [4-[[4-[benzyl(methyl)amino]phenyl]-[4-(dimethylamino)phenyl]methylidene]cyclohexa-2,5-dien-1-ylidene]-dimethylazanium;chloride Chemical compound [Cl-].C1=CC(N(C)C)=CC=C1C(C=1C=CC(=CC=1)N(C)CC=1C=CC=CC=1)=C1C=CC(=[N+](C)C)C=C1 ZMJPCIAEJKVKMQ-UHFFFAOYSA-M 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000002791 soaking Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- Crystals, And After-Treatments Of Crystals (AREA)
Abstract
一种作可调谐激光晶体用的掺铬钨酸锌单晶的退火工艺属于钨酸盐单晶体制造领域,其特征在于:它是一种在固态介质中进行的退火工艺。所用的介质为Al2O3粉,或者TiO2粉,也可用上述两者按重量比配制的混合物,其退火温度在1100~1200℃间,保温20~30小时,再以130±30℃/小时的速率降至室温。用本法制得的晶棒可大大消除色芯,故透光性强,在室温下泵浦时发光效率也高。当在上述混合物中退火时其激光输出能量平均可达0.27mJ。
Description
一种作可调谐激光晶体用的掺铬钨酸锌单晶的退火工艺属于钨酸盐单晶体制造领域。
掺铬钨酸锌是一种新型可调谐激光晶体,制成一定尺寸的晶棒后,可在室温下泵浦出近红外波段的高能量的宽带脉冲光,在现有的制造工艺中,拉制成的晶体都在空气中退火,存在严重的色芯;而如果采用掺入Li或Nb离子的方法去消除色芯的话,就会降低晶体的发光效率,缩短荧光寿命,因此,只能在77K温度下获得可调谐激光输出,在室温下只能泵浦厚度小于1mm的晶体,且只能获得微弱的宽带脉冲光输出,因此不具有实用价值。
本发明的目的在于提供一种可大大消除色芯,透光性强,在室温下泵浦时发光效率高的可供实用的掺铬钨酸锌单晶的退火工艺。
为了达到上述发明目的,本发明的特征在于:它是一种掺铬钨酸锌在固态介质中的退火工艺,其所采用的固态介质是Al2O3粉,或者是TiO2粉,也可以是上述两者的混合物。
使用证明:按本发明提出的工艺对掺铬钨酸锌进行退火后,可使晶体颜色变浅,有助于消除由于氧空位而形成的严重色芯,增强透光性,提高发光效率。
实施例:
1.掺铬钨酸锌在Al2O3粉中的退火工艺(在ZnWO4中Cr2O3的重量比为0.005%,~0.01%,下同)晶体尺寸为ψ20×60mm
退火温度(℃) 1100 1150 1200
保温时间(h) 20 25 30
降温速度(℃/h) 100 130 160
退火后,掺铬钨酸锌晶体的颜色变浅,由紫黑色变为亮紫色,与在空气中退火相比,在波长λ=450~750mm范围其基质本身的吸收下降30%左右。
2.掺铬钨酸锌在TiO2粉中的退火工艺:
退火温度(℃) 1100 1150 1200
保温时间(h) 20 22 25
降温速率(℃/h) 100 130 160
退火后,掺铬钨酸锌晶体的颜色变浅,由紫黑色变为亮紫色,与在空气中退火相比,在波长λ=450~750mm范围其基质本身的吸收下降30%左右。
3.掺铬钨酸锌在Al2O3和TiO2的混合粉末中的退火工艺:
Al2O3∶TiO22∶1 3∶2 4∶3
(重量比)
退火温度(℃) 1100 1150 1200
保温时间(h) 20 25 30
降温速率(℃/h) 100 130 160
在室温下泵浦时 0.22 0.36 0.27
输出能量(mJ)
退火后,掺铬钨酸锌晶体的颜色变浅,由紫黑色变为亮紫色,与在空气中退火相比,在波长λ=450~750mm处,其基质本身的吸收下降30~35%。在室温下以激光为泵浦光,沿〔100〕方向泵浦时其近红外激光的输出能量平均为0.27mJ,输出波长为0.95μm。
Claims (1)
1、一种作可调谐激光晶体用的掺铬钨酸锌单晶的退火工艺,其特征在于其介质为固体,它采用的是Al2O3粉,或TiO2粉,或者是两者的混合物,其退火温度在1100~1200℃之间,在升温至退火温度后要保温20~30小时,然后以130±30℃/小时的速率降至室温。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 92101723 CN1027459C (zh) | 1992-03-20 | 1992-03-20 | 掺铬钨酸锌单晶的退火工艺 |
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CN 92101723 CN1027459C (zh) | 1992-03-20 | 1992-03-20 | 掺铬钨酸锌单晶的退火工艺 |
Publications (2)
Publication Number | Publication Date |
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CN1076736A CN1076736A (zh) | 1993-09-29 |
CN1027459C true CN1027459C (zh) | 1995-01-18 |
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CN 92101723 Expired - Fee Related CN1027459C (zh) | 1992-03-20 | 1992-03-20 | 掺铬钨酸锌单晶的退火工艺 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101944703A (zh) * | 2010-07-30 | 2011-01-12 | 北京工业大学 | 激光棒端接Cr4+:YAG的制备工艺 |
CN102557141B (zh) * | 2012-03-02 | 2015-05-13 | 河北联合大学 | 一种钨酸锌纳米片的结构导向的合成 |
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1992
- 1992-03-20 CN CN 92101723 patent/CN1027459C/zh not_active Expired - Fee Related
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