Products Description
CVD Polycrystalline Optical Blank
Hope Optical Grade Polycrystalline CVD Diamond Windows feature high transmission across the ultraviolet (UV), far infrared (FIR), and microwave wavelength spectra. Manufactured from plasma chemical vapor deposited diamond by Hope, these windows offer high-purity, uniformity, and ultimate scratch resistance.
Hope CVD polycrystalline diamond optical sheet produced by our company has excellent optical and mechanical properties. Thermal stability ; From X-ray, ultraviolet light, visible light, infrared light to millimeter microwave band has a high transmittance, excellent mechanical properties and thermal stability, can provide 100 times more power processing capacity than traditional infrared optical materials and used in harsh environments, is an excellent optical material.
Enjoy the benefits of diamond's unique properties – very broad transmission range, extraordinary hardness, and high resistance to thermal shock and thermal lensing.
Hope Optical Grade Polycrystalline CVD Diamond Windows are used as exit windows of high-power CO2 lasers, offering higher thermal conductivity and lower absorption than other infrared materials to minimize effects on beam quality. Other common applications include their use as microwave windows in diamond-based nuclear detectors, general microwave engineering, and multi-spectral optic systems. Custom coating opportunities, including anti-reflection and high-reflectivity coatings, are available. Please contact us for more information.
Product Paramenters
Item | Argument |
Vickers hardness | 8000~10000 kg/mm² |
Density | 3.51 g/cm after |
Young's modulus | 1000~1100GPa |
Coefficient of thermal expansion | 2.3 x10-6 & have spent 1 ℃ - |
Cutting tolerance | 0.030 mm or less |
Single side or double side polishing, shape and size can be cut according to customer requirements.
Comparison Table
| CVD | ZnSe | ZnS | Ge | Si | GaAs | Al2O3 |
Band gap /eV | 5.48 | 2.7 | 3.9 | 0.664 | 1.11 | 1.142 | 9.9 |
Absorption coefficient | 0.1 ~ 0.3 | 0.005 | 0.2 | 0.02 | 0.35 | 0.01 |
|
Microhardness /(kg/mm2) | 8300 | 137 | 230 | 780 | 1150 | 721 | 190 |
Refractive index | 2.38 | 2.40 | 2.19 | 4.00 | 3.42 | 3.28 | 1.63 |
Thermal conductivity /(W/(cm.K)) | 18 to 22 | 0.19 | 0.27 | 0.59 | 1.63 | 0.55 | 0.35 |
Coefficient of thermal expansion /10-6K-1 | 1.3 | 7.6 | 7.9 | 5.9 | 2.56 | 5.9 | 5.8 |
Company Profile
Zhengzhou Hope Superhard Material Co.,Ltd is located in Zhengzhou High-tech Industrial Development Zone. With our proprietary technologies and Self-developed Equipment, we have developed into a high-tech private company integrating scientific research , manufacturing, and sales.
We provide full-range of synthetic diamond and related products including Lab-Grown Diamond, Diamond Powder, Large Single Crystal Diamond, Diamond Micro powder, CBN Powder, MCD and PCD Wire Drawing Die Core, PCD, PDC, PCBN, CVD and Single Crystal Diamond Tool, Wire Drawing Die, Diamond Grinding Wheel etc. These products serve diverse industries such as Aerospace , Electronics, Optics, Machinery, Energy Exploration, Construction and Jewelry.
We are committed to the fundamental principles of exceptional corporate credibility and product quality, leveraging sincere customer service as a bridge to collaboratively create a bright future with our clients.
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FAQ
1. What are your business scopes?
-We are a superhard material manufacturer with 20+ years of experience. Our main products include single crystal and polycrystalline diamond, CBN, various micro powders, PCD, PDC, TSP, CVD, PCBN etc and related tool products.
2. What payment methods do you accept?
-We accept T/T, L/C, Alibaba Trade Assurance, and other secure payment methods. Please contact us for more options.
3. Do you offer OEM/ODM services?
-Yes, we provide customized OEM/ODM services, including logo printing, packaging design, andproduct specifications tailored to your requirements.
4.Can I get a sample before placing a bulk order?
-Yes, we do provide samples for quality evaluation, but the buyer is responsible for the sample and shipping costs.
5. What is your production lead time?
-After order confirmation and deposit payment, our standard production time is 7 working days for a regular order. This time may vary based on the order quantity, product complexity, and customization requirements.
