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激光晶體（laser crystal），可將外界提供的能量通過光學諧振腔轉(zhuǎn)化為在空間和時間上相干的具有高度平行性和單色性激光的晶體材料。是晶體激光器的工作物質(zhì)。
物理&光學性質(zhì)
|
化學分子 |
420-5200nm |
120-8500nm |
200-2300nm |
|
晶體結(jié)構(gòu) |
Trigonal,Space Group R3c |
Trigonal,Space Group R3c |
Trigonal,Space Group R3c |
|
熔點 |
Positive Uniaxial |
Positive Uniaxial |
Negative Uniaxial |
|
密度 |
a=5.14? |
a=b=4.621 ?,c=3.053 ? |
|
|
莫氏硬度 |
4.64g/cm3 |
3.18g/cm3 |
2.65g/cm3 |
|
潮解性 |
Low |
Low |
Low |
|
熱傳導系數(shù) |
5
|
6 |
7 |
|
熱膨脹系數(shù) |
aa=2.0*10﹣6/k@25℃ ac=2.2*10﹣6/k@25℃
|
aa=6.23-9.25*10﹣6/k ac=10.86-14.54*10﹣6/k |
aa=6.2*10﹣6/k ac=10.7*10﹣6/k |
|
激射波長 |
5*10﹣5/cm |
10﹣6/cm |
10﹣6/cm |
|
吸收范圍 |
<0.1%/cm@1064nm |
0.07at 0.2um;0.02 at 5.0um
|
<0.1%/cm@1064nm |
|
晶格常數(shù) |
ne=2.20263,no=2.28629 l n=0.08366 ρ=2.135°@633nm |
ne=1.38876,No=1.37698 l n=0.01178 ρ=0.488°@633nm |
ne=1.55170,No=1.54265 l n=0.00905 ρ=0.335°@532nm |
|
熒光壽命 |
420-5200nm |
120-8500nm |
200-2300nm |
|
吸收系數(shù) |
Trigonal,Space Group R3c |
Trigonal,Space Group R3c |
Trigonal,Space Group R3c |
|
折射率 |
Positive Uniaxial |
Positive Uniaxial |
Negative Uniaxial |
|
極化發(fā)射 |
a=5.14? |
a=b=4.621 ?,c=3.053 ? |
|
特性
|
內(nèi)容 |
0.06-0.5 wt%Ti dopant |
0.5-1.2 atm%Nd dopant(10% tolerance) |
0.2-3 atm%Nd dopant(10% tolerance) |
|
品質(zhì)因數(shù) |
100-300 |
|
|
|
孔徑 |
2-50mm |
3-14mm |
1-20mm |
|
路徑長度 |
2-130mm |
1-60mm |
0.02-20mm |
|
結(jié)束配置 |
Flat/Flat or Brewster/Brewster Ends or Specified |
||
|
晶體 |
Ti:Sapphire |
Nd:YAG |
Nd:YVO4 |
|
晶向 |
Optical Axis C Normal to Rod Axis |
<111>Crystalline Direction(+/-0.5℃) |
a-cut Crystalline Direction(+/-0.5℃) |
|
平行度 |
<10 arc seconds |
||
|
光潔度 |
Better than 60/40 Scratch/Dig Per MIL-O-13830A |
Better than 20/10 Scratch/Dig Per MIL-O-13830A |
Better than 20/10Scratch/Dig Per MIL-O-13830A |
|
面形 |
<λ/10@633nm |
<λ/10@632.8nm |
<λ/10@632.8nm |
|
透過波前 |
<λ/4 per inch@633nm |
<λ/10 @632.8nm for3-7mm <λ/8 per inch@632.8nm for>=7mm |
<λ/8@633nm |
|
垂直度 |
<5 arc minutes |
<5 arc minutes |
<5 arc minutes |
|
通光口徑 |
Central 90%
|
Central 95%
|
Central 95%
|
|
倒角 |
0.15*44°
|
0.15*45°
|
0.15*45° |
|
損傷閥值 |
Over 15J/cm2(Rods without Coating) over 700MW/cm2(Coating) |
Over 15J/cm2(Rods without Coating) over 700MW/cm2(Coating) |
Over 15J/cm2(Rods without Coating) over 700MW/cm2(Coating) |
|
鍍膜 |
AR@700-1100nm |
a)AR@10664nm,R<0.1% |
a)AR@10664nm,R<0.1% |
|
b)AR@1064nm,R<0.1%;HT@808nm,T>95% |
b)AR@1064nm,R<0.1%;HT@808nm,T>95% |
||
|
c)HR@1064nm,R<99.8%;HT@808nm,T>95% |
c)HR@1064nm,R<99.8%;HT@808nm,T>95% |
||
|
d)HR@1064nm,R<99.8%;HT@808nm,T>95%;HR@532nm,R>99% |
d)HR@1064nm,R<99.8%;HT@808nm,T>95%;HR@532nm,R>99% |
||
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