中文字幕免费在线看线人动作大片,韩国免费一级a一片在线播放,亚洲成人动漫在线观看,99精品在线观看

<p id="atf20"></p>
<p id="atf20"></p>
<p id="atf20"><listing id="atf20"><acronym id="atf20"></acronym></listing></p>

<p id="atf20"></p>

  • 首頁(yè)
  •  
  • 產(chǎn)品
  •  
  • 摻釹釩酸釔(Nd:YVO4)
 
摻釹釩酸釔(Nd:YVO4)

 

摻釹釩酸釔(Nd:YVO4)晶體是一種性能優(yōu)良的激光晶體,適于制造激光二極管泵浦特別是中低功率的激光器。與Nd:YAG相比Nd:YVO4對(duì)泵浦光有較高的吸收系數(shù)和更大的受激發(fā)射截面。激光二極管泵浦的Nd:YVO4晶體與LBO,BBO,KTP等高非線性系數(shù)的晶體配合使用,能夠達(dá)到較好的倍頻轉(zhuǎn)換效率,可以制成輸出近紅外、綠色、藍(lán)色到紫外線等類(lèi)型的全固態(tài)激光器?,F(xiàn)在Nd:YVO4激光器已在多個(gè)領(lǐng)域得到廣泛的應(yīng)用。而且Nd:YVO4二極管泵浦固態(tài)激光器正在迅速取代傳統(tǒng)的水冷離子激光器和燈泵浦激光器的市場(chǎng),尤其是在小型化和單縱模輸出方面。

Capabilities:

Nd dopant:
0.27%, 0.3%, 0.4%, 0.5%, 0.7%, 1.0%, 2.0%, 3.0%
Width x Height:
1x1 ~ 16x16mm
Length:
0.02 ~ 20mm

Specifications:

Orientation:
a-cut( ± 0.5° )
Dimensional Tolerance:
+/-0.1mm
Wavefront Distortion:
<λ/8 at 633nm
Surface Quality:
20/10
Parallelism:
< 10 arc seconds
Perpendicularity:
< 5 arc minutes
Surface Flatness:
<λ/10 at 632.8nm
Clear Aperture:
Central 95%
Chamfer:
0.15x45°
Coating:
1.AR@1064nm R<0.1%
2.AR@1064nm R< 0.1% & HT@808nm T>95%
3.HR@1064nm R>99.8% & HR@532nm R>99% & HT@808nm T>95%

Properties: 

Atomic Density
~1.37x1020 atoms/cm2
Crystal Structure
Zircon Tetragonal, space group D4h, a=b=7.12, c=6.29
Density
4.22 g/cm3
Mohs Hardness
Glass-like, ~5
Thermal Expansion Coefficient
aa=4.43x10-6/K, ac=11.37x10-6/K
Thermal Conductivity Coefficient
||C: 5.23 W/m/K; ^C: 5.10 W/m/K
Lasing Wavelengths
914nm, 1064 nm, 1342 nm
Crystal Class
positive uniaxial, no=na=nb ne=nc
no=1.9573, ne=2.1652, @ 1064nm
no=1.9721, ne=2.1858, @ 808nm
no=2.0210, ne=2.2560, @ 532nm
Thermal Optical Coefficient
dna/dT=8.5x10-6/K, dnc/dT=3.0x10-6/K
Stimulated Emission Cross-Section
25.0x10-19 cm2 , @1064 nm
Fluorescent Lifetime
90 ms (about 50 ms for 2 atm% Nd doped) @ 808 nm
Absorption Coefficient
31.4 cm-1 @ 808 nm
Absorption Length
0.32 mm @ 808 nm
Intrinsic Loss
Less 0.1% cm-1 , @1064 nm
Gain Bandwidth
0.96 nm (257 GHz) @ 1064 nm
Polarized Laser Emission
p parallel to optic axis (c-axis)
Diode Pumped Optical to Optical fficiency
> 60%

Sellmeier Equation (for pure YVO4 crystals)
no2=3.77834+0.069736/(l2 - 0.04724) - 0.0108133l2
no2=4.59905+0.110534/(l2 - 0.04813) - 0.0122676l2

 

Note: Kinds of sizes, coating are available upon request.


   PDF to download