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激光晶體（laser crystal），可將外界提供的能量通過光學(xué)諧振腔轉(zhuǎn)化為在空間和時(shí)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(xué)性質(zhì)
|
化學(xué)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(diǎn) |
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(dǎo)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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