激光晶体（laser crystal），可将外界提供的能量通过光学谐振腔转化为在空间和时间上相干的具有高度平行性和单色性激光的晶体材料。是晶体激光器的工作物质。
物理&光学性质
|
化学分子 |
420-5200nm |
120-8500nm |
200-2300nm |
|
晶体结构 |
Trigonal,Space Group R3c |
Trigonal,Space Group R3c |
Trigonal,Space Group R3c |
|
熔点 |
Positive Uniaxial |
Positive Uniaxial |
Negative Uniaxial |
|
密度 |
a=5.14Å |
a=b=4.621 Å,c=3.053 Å |
|
|
莫氏硬度 |
4.64g/cm3 |
3.18g/cm3 |
2.65g/cm3 |
|
潮解性 |
Low |
Low |
Low |
|
热传导系数 |
5
|
6 |
7 |
|
热膨胀系数 |
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 |
|
激射波长 |
5*10﹣5/cm |
10﹣6/cm |
10﹣6/cm |
|
吸收范围 |
<0.1%/cm@1064nm |
0.07at 0.2um;0.02 at 5.0um
|
<0.1%/cm@1064nm |
|
晶格常数 |
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 |
|
荧光寿命 |
420-5200nm |
120-8500nm |
200-2300nm |
|
吸收系数 |
Trigonal,Space Group R3c |
Trigonal,Space Group R3c |
Trigonal,Space Group R3c |
|
折射率 |
Positive Uniaxial |
Positive Uniaxial |
Negative Uniaxial |
|
极化发射 |
a=5.14Å |
a=b=4.621 Å,c=3.053 Å |
|
特性
|
内容 |
0.06-0.5 wt%Ti dopant |
0.5-1.2 atm%Nd dopant(10% tolerance) |
0.2-3 atm%Nd dopant(10% tolerance) |
|
品质因数 |
100-300 |
|
|
|
孔径 |
2-50mm |
3-14mm |
1-20mm |
|
路径长度 |
2-130mm |
1-60mm |
0.02-20mm |
|
结束配置 |
Flat/Flat or Brewster/Brewster Ends or Specified |
||
|
晶体 |
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 |
||
|
光洁度 |
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 |
|
透过波前 |
<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 |
|
通光口径 |
Central 90%
|
Central 95%
|
Central 95%
|
|
倒角 |
0.15*44°
|
0.15*45°
|
0.15*45° |
|
损伤阀值 |
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) |
|
镀膜 |
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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