High Performance Calcium Fluoride
Overview
High Performance Calcium Fluoride (CaF₂) is a specialized optical material prized for its exceptional transparency in ultraviolet (UV) and infrared (IR) wavelengths. Unlike standard fluorite, it undergoes rigorous purification and crystal growth processes to minimize impurities and defects. This grade is engineered for precision optics, offering superior light transmission from 0.13 μm (VUV) to 10 μm (IR). Its cubic crystal structure ensures isotropic properties, making it ideal for lenses, windows, and laser components in demanding environments.
Physical and Chemical Properties
The material exhibits a Mohs hardness of 4, making it softer than glass but easier to polish to optical flatness. Its thermal expansion coefficient (18.9×10⁻⁶/°C) and thermal conductivity (9.7 W/m·K) allow stable performance under thermal stress. Chemically inert to most solvents, CaF₂ is susceptible to etching by strong acids and ammonium salts. Its low refractive index (1.43 at 587 nm) reduces reflection losses, while a high laser damage threshold (10 J/cm² at 1064 nm) suits high-power applications.
Main Applications
In lithography, CaF₂ components are critical for 193nm ArF excimer lasers used in semiconductor fabrication. Its UV transparency enables high-resolution patterning for chips below 10nm nodes. Other uses include FTIR spectrometer windows, missile guidance system optics, and telescope lenses. Emerging applications cover quantum computing (as a substrate for qubits) and EUV photolithography masks.
Safety and Storage
While non-toxic, CaF₂ powder requires dust control to prevent inhalation. Processed optics should be handled with lint-free gloves to avoid surface contamination. Store in nitrogen-purged containers for long-term stability. Desiccants are recommended to prevent hydrolysis, which can form surface hydroxides degrading optical performance. Cleaning requires alcohol or acetone—avoid acid-based solutions.
B2B Procurement Guide
Key specifications include: 1) Purity (99.99% for deep UV), 2) Birefringence (<5 nm/cm), 3) Surface roughness (<5 Å RMS for laser optics). Request certificates for trace metal content (Fe, Cu <1 ppm). Lead times for custom crystals range 8-12 weeks. Bulk orders (100+ kg) may qualify for 15-20% discounts. For prototyping, consider off-the-shelf plano-convex lenses or polished windows from specialized optics suppliers.
Related Manufacturers
- 主营：贝壳粉、氧化铁、填充剂、高纯度萤石粉、萤石球、海泡石、火山石、沸石粉、加重剂、电气石、金刚砂、金云母、碳酸钙、麦饭石、修复剂、夜光粉、鹅卵石、夜光石、石英砂、萤石粉、造纸木粉、耐火材料、园艺造景、粉体材料、煅烧工业、轻质绝热
- 主营：火山石、火山石板、萤石粉、氟化钙、吸附竹炭、重晶石粉、石英砂、铁粉、硅藻土、松树皮、火山石粉、活性炭、木粉、陶粒、氧化镁、氧化钙、云母、珍珠岩、蛭石、核桃壳、核桃砂、核桃皮、火山岩
- 主营：火山石、吸附竹炭、重晶石粉、高强无收缩灌浆料、火山石板、萤石、铁粉、石英砂、硅藻土、氧化镁、松树皮、木粉、玻璃块、氧化钙、火山石粉、陶粒、云母
- 主营：滑石粉、金云母、蛭石片、高铝粉、高岭土、鹅卵石、石英砂、杨木粉、胶粘石、膨润土、蛭石粉、水洗沙、萤石粉、木粉60目、30目漂珠、硅藻土、电气石、孵化蛭石、生物质颗粒、贝壳彩片、氧化铁颜料、生铁粉、白云母、沸石、漂珠
- 主营：聚乙烯醇、工业碳酸氢钠、絮凝剂、氟化钙、阳离子、阴离子、小苏打、浮选剂、稳定剂、胶粉、硅脂、脱模剂、环氧树脂、氧化石蜡、提金剂
- 主营：氟硅酸镁、氟硅酸钠、氟化氢铵、氟化钙、氟化铵、氟化钾、氟化钠、氟硅酸钾、氟硅酸锌、六氟磷酸钾、六氟磷酸钠、氟硅酸铵、氟化铝
- 主营：铁砂、铁粉、重钙、高岭土、轻钙、氧化钙、白水泥、滑石粉、膨润土、红土黄土、硅灰、硅藻土、活性白土、萤石粉、石英粉、重晶石粉、沸石粉、莫来砂、珍珠岩粉、膨润土猫砂、赤铁粉、粉煤灰、锰砂、石英砂
- 主营：石英砂、无烟煤、活性炭、高纯石英砂、煅烧高岭土、沸石、火山石、增碳剂、堇青石粉、活性白土、硅藻土、椰壳活性炭、无烟煤滤料、沸石颗粒、火山石颗粒、工业硅藻土、漂白土、萤石粉、米白圆粒沙、五彩玉石米、五彩玉石、硅酸铝纤维、重钙、轻钙、五彩玉石骨料
- 主营：氧化铁颜料、沸石粉、铁砂、高岭土、氟化钙粉、电气石粉、氧化铁棕、除渣剂、橡胶粉、氧化铁灰、四氧化三铁、玻璃粉、磁粉、氧化铁黑、滑石粉、减水剂、碳酸钙、萤石粉、红色颜料、氧化铁黄、硅微粉、耐火材料、氧化铁红、伊利石粉、贝壳粉
- 主营：防水剂、氟化铵、消毒剂、氟化钙、氟硅酸铵、表面处理剂、木材防腐剂
- 主营：石英系列、石棉纤维系列、海泡石系列、高岭土系列、悬浮剂增稠剂系列、耐火材料系列、氧化铁颜料系列、碳酸钙系列、陶土系列、橡胶粉系列、硅藻土、火山石、汇算镁铝、粉煤灰、硅灰、矿粉、介质棉、红土、石英砂、硅线石、蓝晶石、蛭石、脱膜粉、硅酸铝
- 主营：杀菌剂、椰子油、印染剂、氟化钙、阻燃剂、油酸锌、润湿剂、硫酸铯、催化剂、粘合剂、乳化剂、草酸锰、硫酸锂、石英砂、绝缘油、茶皂素、防腐剂、醋酸镁、锂电池、碘化锂、培养基、蒸馏水、硬脂酸、塑化剂、草酸钾、磷酸铁
- 主营：沸石粉、火山石、粉氧化钙、氟化钙、填充轻钙粉、机制水磨石子
- 主营：氟硅酸镁、氟化氢铵、氟化钠、氟化钙、氟硅酸钠、氟化铵、氟硅酸锌、氟化钾
- 主营：白炭黑、白刚玉、漂珠、高岭土、石油焦、石英砂、陶粒球、电气石、麦饭石球、金刚砂、碳化硅、石墨、陶瓷颗粒、氧化镁、钛白粉、透明粉、氧化铁、碳酸钙、膨润土、营养土、玄武岩纤维、玻璃纤维、锂辉石
- 主营：玻璃鳞片、轻钙、空心玻璃微珠、高岭土、氢氧化铝、S95矿粉
- 主营：重质碳酸钙、碳酸钙、滑石粉、高岭土、海泡石、石灰石、硅藻土、一级矿粉、萤石矿石、活性钙、沉淀硫酸钡、氢氧化钙、氧化钙、膨润土、透明粉、硅酸铝粉、贝壳粉、彩砂、轻钙、萤石粉、水镁石、矿粉、铸石粉、浴沙、金玉明砂
- 主营：真石漆、沙子全、腻子粉、氟化钙粉、粘土球、白沙子、烘干沙、膨润土、40目河沙、烘干河沙、水族婚庆、抗裂砂浆、钙粉工业、塑料橡胶、喷砂除锈、环氧草坪、人造沙滩、石粉填充、砂浆抹面、钻井泥浆、公园造景、石粉砂浆、石粉沙子、白色沙子、pvc填充料、河沙园艺
- 主营：贝壳粉、滑石粉、火山石、高岭土、云母粉、水洗石、石英砂、果木炭、金刚砂、硅灰粉、玻璃珠、陶瓷球、沙滩沙、绿沸石、玻璃砂、白云石、膨润土、蛭石粉、硅藻土、碳酸钙、透明粉、地面铺路、保温砂浆、沸石颗粒、贝壳彩片
- 主营：岩片、染色岩片、蛭石、萤石氟化钙粉、云母、石英砂、雨花石、染色云母、机制炭、烧烤炭、白云石、石子、五彩石
- 主营：铝矾土、炉衬料、石英砂、高岭土、高铝粉、高铝砂、石英粉、长石粉、玻璃粉、电熔镁砂、锆英砂、金刚砂、矿渣粉、重晶石粉、彩砂、重金石、钙粉
- 主营：氧化铁颜料、石墨粉、硅藻土、氟化钙粉、二氧化硅、电气石、滑石粉、硅酸铝粉、硅灰石粉