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激光晶体

晶体最适用于激光应用。 UNI OPTICS提供以下晶体产品。

1.激光晶体和棒:YAG晶体,Nd:YVO4晶体
2.非线性晶体:BBO,KTP,LiNbO3,LBO。KDP&DKDP
3.双折射晶体:YVO4,a-BBO,方解石。


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相关产品
Optical color less glass
光学玻璃
光学玻璃可以改变光的方向,以及紫外光,可见光或红外光的相对光谱分布。光学玻璃材料是最常见的类型,因为它具有优异的光学性能,如高透光性和环境稳定性。
Colored Glass Substrates
有色玻璃(截至型,选择吸收型,中性密度型)

UNI Optics供应材料包括中性密度,短程,长通,带通,紫外线,红外线,吸热和色温转换滤光片。

UN Grade Fused Silica
融石英
融石英由硅和氧的化学结合形成。 熔融石英是一种完美的光学材料,因为它具有良好的紫外和红外透射率,低热膨胀系数。 它具有高稳定性,耐大温度偏移,宽温度工作范围和高激光损伤阈值的热冲击。
IR Optics material
红外材料

1.  Germanium (Ge)


Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 μm wavelength band. Its high refractive index makes Ge ideal for low power imaging systems because of minimum surface curvature. Chromatic aberration is small, often eliminating the need for correction.

 

Crystallographic properties
Syngony Cubic
Crystal Form Poly or Single Crystal
Lattice Constant 5.66
Cleavability <111>, non-perfect
Molecular Weight 72.6
Physical properties
Density, at 20 °C 5.33
Hardness, Mohs 6.3
Dielectric Constant for 9.37 × 109 Hz at 300 K 16.6
Melting 937
Thermal Conductivity, W/m·K at at 293 K 59
Thermal Expansion, 1/K at 298 K 6.1 × 10-6
Specific Heat Capacity, J/(kgK) at 273-373 K 0.074
Bandgap, eV 0.67
Knoop Hardness, kg/mm2 800
Youngs Modulus, Gpa 102.66
Shear Modulus, GPa 67.04
Bulk Modulus, GPa 77.86
Debye Temperature, K 370
Poissons Ratio 0.278
Elastic Coefficient C11=129, C12=48.3, C44=67.1
Apparent Elastic Limit 89.6 MPa (13000psi)
Chemical properties
Solubility in water None
Solubility in acids Soluble
Molecular Weight 72.59

2. Silicon (Si) 


Silicon (Si) is grown by Czochralski pulling techniques (CZ) and contains some oxygen that causes an absorption band at 9 microns.To avoid this, material can be prepared by a Float-Zone (FZ) process. Optical silicon is generally lightly doped (5 to 40 ohm cm) for best transmission above 10 microns, and doping is usually boron (P-type) and phosphorus (N-type). After doping silicon has a further pass band: 30 to 100 microns which is effective only in very high resistivity uncompensated material.
 
CZ Silicon is commonly used as substrate material for infrared reflectors and windows in the 1.5-8 micron region. The strong absorption band at 9 microns makes it unsuitable for CO2 laser transmission applications, but it is frequently used for laser mirrors because of its high thermal conductivity and low density. Application as window, lens in the 1.5 - 8 um region; Mirror for CO2 laser and spectrometer applications.
 

Crystallographic properties
Syngony Cubic
Lattice Constant, A 5.43
Physical properties
Density 2.33g/cm3
Hardness, Mohs 7
Dielectric Constant for 9.37 x 109 Hz 13
Melting point, оС 1414
Thermal Conductivity, W/m·K at 313 K 163
Thermal Expansion, 1/K at 293 K 2.6x10-6
Specific Heat Capacity, J/(kg°C) 712.8
Bandgap, eV 1.1
Knoop Hardness, kg/mm2 1100
Youngs Modulus, Gpa 130.91
Shear Modulus, GPan 79.92
Bulk Modulus, GPa 101.97
Debye Temperature, K 640
Poissons Ratio 0.28
Chemical properties
Solubility in water None
Molecular Weight 28.09

3、ZnS material:


ZnS MultiSpectral Under intense heat and pressure, defects within the crystalline lattice are virtually eliminated, leaving a water-clear material with minimal scatter and high transmission characteristics from 0.4 to 12 microns. This material is particularly well suited for high-performance common aperture systems that must perform across a broad wavelength spectrum.

Specifications:

Material: ZnS MultiSpectral
Diameter Tolerance: --------------------- +0.0, -0.1mm
Thickness Tolerance: -------------------- ±0.1mm
Clear Aperture: ---------------------------->85%
Parallelism: -----------------------------------3 arc minute
Surface Quality: ----------------------------80-50 scratch and dig
Wavefront Distortion: -------------------- λ /2 per 25mm @633mm
Bevel: -----------------------------------------Protective  (<0.2mm x 45° )
Coating: -------------------------------------- Optional (Uncoated, AR Coating, etc.)


4. ZnSe material


ZnSe is a preferred material for lenses, windows, output couplers and beam expanders for its low absorptivity at infrared wavelengths and its visible transmission. For high-power applications, it’s critical that the material bulk absorption and internal defect structure be carefully controlled, that minimum-damage polishing technology be employed, and the highest quality optical thin-film coatings are used. The material absorption is verified by CO2 laser vacuum calorimetry. Our quality assurance department provides testing and specific optics certification on request.

ZnSe is non-hygroscopic and chemically stable, unless treated with strong acids. It’s safe to use in most industrial field, and laboratory environments.



平凹透镜
光学玻璃平凹透镜

平面凹透镜是光束扩散,光投影,或扩大光学系统焦距的理想选择,它是一种焦距为负的光学透镜,有一个凹面平面朝向所需焦平面。平凹透镜适用于一系列的应用和各种行业福州优恩立光电能够按客户要求为平凹透镜提供各种镀膜


分光片
可见光和近红外光分光片

我们的分光板可用于高功率激光系统。在使用分光板时,两个光束在不同的光路中传输,光路取决于入射角和板的厚度。

融石英楔角棱镜
N-BK7和融石英楔角棱镜

棱镜是一种具有平面倾斜面的光学元件,通常各面以很小的角度相互倾斜,它将光线转向较厚的部分通常可以用作隔离元件。楔角棱镜也可以用来产生一个小偏差,不允许光线返回源。

冕牌玻璃双凸透镜
MgF2镀膜双凸透镜
双凸透镜用于图像传递应用,或用于紧密共轭的成像。 双凸透镜具有正焦距,以及两个具有相等半径的凸面。 随着共轭比率的增加,像差将增加。 DCV镜头用于各种行业或应用。 Uni-Optics提供双凸透镜,具有多种涂层选择。
激光窗片
高功率激光窗片


1.什么是激光窗片

 

激光防护窗,也称为激光防护玻璃、防护滤光片或焊接防护窗,主要应用于保护高成本的激光光学元件,以节省资金。

 

2.激光窗的主要用途是什么?

 

这些窗口片通常用于激光切割、激光焊接等设备上,用以避免高精度的激光光学器件因加工时材料飞溅而造成的损坏。

 

3.优恩立激光窗口片的主要优势

 

高传输率

高损伤阈值

低散射

低吸收

优良的膜层密度

良好的环境稳定性




Laser Windows   Laser Windows


常规规格:


尺寸:4-80毫米,圆形或方形

材质:BK7、熔融石英、ZnSe

表面质量:10/5

面型:lambda/10@632.8nm

平行度:30''

粗糙度:3A

微型元件锥透镜
3mm直径镀铝膜锥透镜

锥形透镜是圆柱形棒透镜,其一端加工成锥形表面。 通常研磨杆的圆周,而抛光锥形表面。

BK7异形棱镜
高性能异形棱镜

异形棱镜成对使用,在保持另一个轴不变的情况下,沿一个轴放大输入光束的大小。椭圆型激光二极管光束可转换成近似圆形的光束


红外硅窗口片
硅窗口片
硅主要用作3至5微米波段的光学窗口片,并用作生产光学滤波器和窗口片的子系统。
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