Optical Crystal Component

Infrared Optical Crystal Component - Magnesium Fluoride Base ■ Overview l Magnesium Fluoride (MgF2) is A double-refractive crystal. 。 l is. Ultraviolet ， Visible and Infrared The band is good. Transmittance l High hardness ， It's a mechanical shock and a heat shock. 。 l It's a good mechanical strength. ， Good moisture resistance. ， And so... is Good window Material 。 For wide use Laser ， Infrared Optical ， Ultraviolet • Science and technology areas such as optical and high-energy detectors ， Special is They're... Ultraviolet The wave is very optical. ， is What we know now. Ultraviolet Cutoff Optical crystals in the wave. ， Transmittance High ， The fluorescent radiation is very small. ， is Ultraviolet Photons. ， Ultraviolet Laser and Ultraviolet The Optical System's Advantage Material 。 Calcium Fluoride Base ■ Overview From Infrared Present. Ultraviolet ， is. 0.13 to 11.3um It's all good in the band. Transmittance ， Top 95%。 It's a good mechanical strength. ， Good moisture resistance. ，, And so... is Good window Material 。 is A good way to go through optical. Material ， Used Excimer Laser 。 Calcium Fluoride The temperature used in the atmosphere of the crystals. 600℃ Below ， It's a vacuum when it's dry. 800℃。 Material Split by used band Ultraviolet Material and Infrared Material 。 Apply Ultraviolet Material Only is is. Ultraviolet Wave （190-350nm） There's better. Transmittance ， Other bands and Infrared It's not so different. ， But because it's right Material High stress double refraction and fluorescent requirements ， Caused original Material And so does the purity. ， So, you have to mark it. is Infrared or Ultraviolet Material 。 Material It's divided into polycrystals and single crystals. ， Both in protective windows and ordinary Infrared Imaging Application ， and None It's a big difference. 。 But it's a high-quality image and Laser In terms of ， Mostly single crystals ， Single crystal Dimensions The bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the bigger the more the bigger the bigger the bigger the bigger the more the bigger the bigger the bigger the bigger the bigger the bigger the more the bigger the bigger the more the bigger the bigger the bigger the bigger the the more the bigger the bigger the more the bigger the bigger the the the more the bigger the bigger the more the bigger the more the bigger the bigger the ， Stricter process requirements ， The outcome rate is declining. 。 Crystal default direction is 《111， After grinding, through the directed instrument. ， Correct to 《111，《110，《100 Wait. ， Directional requirements and travel requirements ， Please state your position. 。 Zinc Selenide Base ■ Overview CVD Zinc Selenide Chemical gas deposition. (CVD) ..and the method synthesis. ， is A yellow, transparent, crystall structure. Material 。 Purity high ， Not humid. ， Chemical stability （ Unless... is It's a lot of acid. ）。 Light transmission is low. ， Refraction rates are even and consistent. ， Transmission Range Is 0.5~22μm。 Zinc Selenide And oxygen reaction. ， It's a toxic sept gas. 。 Although... Zinc Selenide Internal Transmittance Very high. ， But because of its high refraction rate ， So the one-sided surface reflection loss is about as high as 17%， It's the whole thing. Transmittance Low 。 Not only do it work, but it does. Optical Component Cause Minimum The damage to optical polishing technology. ， And Requires Optical Thin Film Coatings of the Highest Quality 。 We can offer you something. 5-200mm Dimensions Ranged Component Products 。 Infrared Optical Crystal Component - Germanium Base ■ Overview Germanium (Ge) and Silicon The same as Ⅳ Element 。 Germanium Monjing Material and Silicon Monjing Material There are many things like that. ， Creatures and Silicon Same as silver gray. 、 Hard and hard. ， is Diamond Structure 。 It's... is A chemical inertia. Material ， He's got a hardness. ， It's good heat. ， Not soluble in water ， Not wet. ， None Poison. ， It's a good heat drive. ， It's got a good surface hardness and a good strength. 。 Germanium is A very common kind. Infrared Optical Material ， The range of the trans-spectrum is 2--12μm， It's covered. 3-5um、8-14um Two atmospheric windows ， It's a small color difference. ， High refractive rate , About 4.0， So, what? Reflectance R About 0.36， After an Antireflection Coating Is Applied , Transmittance Katar 95 % Above 。 Germanium Another one. Typical Semiconductor Material , less than 1.8um spectral range is It's a native absorption area. ； Greater than 12um The Clinger Resonance Absorption Area. 。2-12um The region is absorbed by free-carrying fluids. 。 is. 2-6um The absorption of the range is almost the same as the sample thickness. None Off ，6-12um The absorption of the area is shown by the different thickness of the sample. Wavelength Increases Accordingly 。 For the right. Germanium Material The evaluation of optical performance , It's used often. 10.6um The light waves are the basis for their performance. 。 Germanium The light doesn't work. is It's best to take the form of the original. , And... is When the resistance rate is about 10Ω-cm It's... Material Best light-seeing performance , Absorption factor approximately 2X10-2cm-1。 P Type pair Infrared The radiation is absorbed. Germanium As a... Infrared Optical Material It's... Maximum Disadvantages is ： Absorption factor changes strongly with temperature 。 Increased absorption as temperature increases ， After further absorption of light energy , It's rising. , Further increase in the absorption factor 。 When the temperature is high enough, it will end up being completely non-transparent. “ The heat's out of control. ” Status 。 This limits its application in many contexts. ： Such as High Energy Laser Window with high speed vehicle etc. 。 Therefore When Selecting This Material Time , The size of the absorption factor should not be considered only , The absorption factor should also be considered in the light of temperature changes 。 Infrared Optical Crystal Component - Silicon Base

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