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對于激光強電場顯示二次以上非線性光學效應的晶體。非線性光學晶體是一種功能材料，其中的倍頻（或稱“變頻”）晶體可用來對激光波長進行變頻，從而擴展激光器的可調諧范圍，在激光技術領域具有重要應用價值。
物理&光學性質
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晶體結構 |
Tigonal,Space Group R3c |
Otthorhombic,Point Group mm2 |
Otthorhombic,Point Group mm2 |
Tigonal,Space Group R3c |
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透過范圍 |
189-3500nm |
350-4500nm |
160-2600nm |
420-5200nm |
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含晶細胞 |
A=b=12.532 ? C=12.717 ? |
A=6.404 ? B=10.616 ? C=12.814 ? |
A=8.44731? B=7.3788 ? C=5.1395 ? |
a=0.515? c=13.863? |
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熔點 |
1095+/-5℃ |
1172℃ Incongruent |
834℃ |
1255+/-5℃ |
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居里溫度 |
925+/-5℃ |
936℃ |
5 |
1140+/-5℃ |
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光學均勻性 |
△n=10-6/cm |
△n=10-6/cm |
△n=10-6/cm |
△n=5*10-5/cm |
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莫氏硬度 |
4.5
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5 |
6 |
5 |
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密度 |
3.85g/cm3
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3.01g/cm3
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2.47g/cm3
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4.64g/cm3
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熱導系數 |
?C,0.012W/m/k ‖C,0.016W/m/k
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0.03 W/m/k
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0.035 W/m/k
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0.046 W/m/k
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二倍頻波長范圍 |
205-1750nm |
1000-2000nm |
800-2000nm |
1100-3000nm |
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吸收系數 |
<0.1%/cm@1064nm |
<1%/cm@1064nm and 532nm |
<=1%/cm@1064nm |
<0.1%/cm@1064nm |
|
非線性光學 系數 |
d21=2.2pm/V d31=0.08pm/V d22=2.2pm/V |
d31=1.95pm/V d32=3.90pm/V d33=15.3pm/V d24=3.90pm/V d15=1.95pm/V
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d21=0.67pm/V d22=0.04pm/V d23=0.85pm/V d34=0.85pm/V d16=0.67pm/V
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d21=d22=d16=2.6pm/V d31=d32=d24=4.6pm/V d33=25.6 pm/V |
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損傷閥值@1064nm |
12.9J/cm2 9.9GW/ cm2 |
6.0J/cm2 4.6GW/ cm2 |
24.6J/cm2 18.9GW/ cm2 |
200GW/ cm2 |
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折射率@1064nm@532nm |
Ne=1.5425 No=1.6551 Ne=1.5555 No=1.6749
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Nx=1.73991 Ny=1.74802 Nz=1.82956 Nx=1.77903 Ny=1.79002 Nz=1.88628
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Nx=1.56447 Ny=1.59050 Nz=1.60538 Nx=1.57842 Ny=1.60650 Nz=1.62154 |
Ne=2.23216 No=2.15600 Ne=2.32309 No=2.23415
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標準規(guī)格和功能
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NLO Crystal |
BBO |
KTP |
LBO |
LiNbO3 |
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角度公差 |
△θ<+/-0.5°；△?<+/-0.5 |
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尺寸公差 |
(w+/-0.1mm)*(H+/-0.1mm)*(L+0.2mm/-0.1mm) |
(w+/-0.1mm)*(H+/-0.1mm)*(L+0.2mm/-0.1mm) |
(w+/-0.1mm)*(H+/-0.2mm)*(L+0.2mm/-0.2mm) |
(w+/-0.1mm)*(H+/-0.2mm)*(L+0.2mm/-0.2mm) |
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面形 |
<λ/8@633nm
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<λ/8@633nm
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<λ/4@632.8nm
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<λ/8@633nm
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光潔度 |
Better than 10/5 Scratch /Dig per MIL-O-13830A |
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平行度 |
<20 arc seconds |
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垂直度 |
<5 arc minutes
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<5 arc minutes
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<30 arc minutes
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<5 arc minutes
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透過波前 |
<λ/8@633nm
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<λ/8@633nm
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<λ/4@632nm
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<λ/8@633nm
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通光口徑 |
>90% Central Area
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>90% Central Area
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>80% Central Area
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>90% Central Area
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孔徑 |
1*1-12*12mm |
1*1-10*10mm |
2-10mm |
1-50mm |
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長度 |
0.02-25mm |
0.05-20mm |
0.3-20mm |
0.3-20mm |
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相匹配類型 |
TypeⅠor TypeⅡ |
TypeⅡ |
TypeⅠor TypeⅡ |
TypeⅠor TypeⅡ |
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端面形式 |
Flat or Brewster or Specified |
Flat or Brewster or Specified |
Flat,Spherical,Parallel and Wedged |
Flat,Spherical,Parallel and Wedged |
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典型鍍膜 |
Antireflective coating
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Antireflective coating Highreflective coating |
Antireflective coating
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Antireflective coating
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