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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.



高精度五角棱镜
N-BK7五角棱镜

在光学系统中,五棱镜是用来定义直角的,它能够提供右手图像,特点是使光线偏离90°。五角棱镜是具有五个面的棱镜,不受轻微运动的影响。福州优恩立光电提供多种五角棱镜,在紫外,可见光,和红外光谱范围具有良好的光学性能。

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。
激光等级镀金属反射镜
高功率激光反射镜

激光反射镜用于要求苛刻的激光应用中的光束控制。激光线反射镜是专为特定激光类型或波长设计的光学反射镜



强脉冲滤光片
IPL滤光片

IPL滤光片是IPL(强脉冲光)机器的关键光学元件,可阻挡紫外波,并为激光设备传输400nm1200nm的有用波,如光子嫩肤脱毛血管和痤疮治疗皮肤再生


光学玻璃弯月透镜
正弯月透镜和负弯月透镜
正弯月透镜是凸凹透镜,但在中心处比在边缘处更厚。 它们被抛光并且普遍用于眼科行业,其中惯例规定镜片屈光度在屈光度中指定。

负弯月透镜是凸凹透镜,但在中心处比在边缘处更薄。 否则描述类似于平凹面镜片。

中性密度滤光片
光学玻璃中性密度滤光片
中性密度滤光片让摄影师非常容易地控制图像中的曝光。该滤光片阻止光线到达相机传感器,因此我们可以让相机在更长的时间内保持更大的通光孔径。
蓝宝石窗片
镀增透膜蓝宝石窗片

蓝宝石窗片在高温下保持高强度,具有良好的热性能和卓越的透明度。它在高达1000°C的温度下对常见的酸和碱具有耐化学性,对于低于300°C的氟化氢也具有耐化学性。 这些特性促使其广泛用于需要在从真空紫外线到近红外范围内的进行光传输的恶劣环境中。

镀增透膜BK7直角棱镜
镀宽带增透膜的斜边直角棱镜

直角棱镜通常用于改变光路,或用于将光束重新定向90°。直角棱镜是设计成90°角的棱镜,根据棱镜的方向产生倒置或反转的左手图像,同时使用两个直角棱镜是理想的使图像或光束位移的应用这些棱镜也被称为镜像反射棱镜

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