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非偏振分光棱镜(NPBS)

非偏振分光棱镜(NPBS)也称为NPBS立体分光镜，是一种更复杂的类型，由两个直角棱镜组成，它们在斜边面处被固定一起。一个棱镜的胶合面有镀膜，在胶合之前，镀有所需反射性能的金属介质膜，具有特定的反射百分比和颜色。镀膜吸收损耗最小，透过率与反射率可设为10%、20%、30%、40%、50%等。

产品产地:
中国
航运港口:
中国福州
交付周期:
四周
付款:
银行电汇, 西联付款

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描述

1.什么是非偏振分光棱镜(NPBS)

非偏振分光棱镜是由一对精密高公差直角棱镜和其中一个棱镜斜边上的金属介质膜胶合在一起构成。其低偏振是依赖于金属介质膜层使得S和P偏振光的透射率和反射率彼此之间的误差在5%以内。这意味着它们不会改变入射光的偏振状态。我们提供宽带和单波长消偏振分光棱镜(NPBS)。为了在适当的波长范围内产生最大的透过率，在分光棱镜的每一面都镀增透膜。

2. 非偏振分光棱镜(NPBS)是如何起作用的？

这些分光镜以最小的敏感度分散能量，入射光束和反射光束的偏振态基本相同。宽带消偏振分光棱镜混合镀膜具有一定吸收能力，但偏振灵敏度最低。由于混合镀膜层的金属性质，这些立体分光镜不适用于高功率激光器。

产品规格

材质：N-SF2 A级光学玻璃

尺寸公差：+/-0.2mm

平整度：λ/4@633nm

光束公差：最小3弧分

表面质量：60-40 S/D

主透过率：tp>95%，ts<1%

主反射比：Rs>99%，Rp<5%

镀膜：斜边面宽带偏振分光镀膜

所有输入和输出面BBAR镀膜

Standard Wavelength(nm)	450-680, 650-850, 900-1200, 1250-1570, 1500-1610 nm
Size (mm)	3.2x3.2x3.2	5x5x5	10x10x10	12.7x12.7x12.7	15x15x15	20x20x20
Part NO.	UBPBS032	UBPBS005	UBPBS010	UBPBS127	UBPBS015	UBPBS020

Note: Other sizes, split ratio and coating are available upon request.

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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。

宽带偏振立体分光棱镜

立体分光棱镜由胶合的两个直角棱镜构成。一棱镜的斜边镀有偏振介质膜。

偏振分光棱镜

偏振分光棱镜由两个直角棱镜胶合而成，其中一个棱镜的斜面镀有偏振介质膜。当与正常入射、非偏振光一起使用时，入射光被分成两束偏振光，P偏振光可直接穿过，S偏振光以90°角反射出来。

3mm直径镀铝膜锥透镜

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红外硒化锌窗口片

砷化锌（ZnSe）广泛用于红外元件，有红外窗口和透镜。产品主要应用于热成像，FLIR，医疗系统和二氧化碳激光器等。

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.