Super-smooth calcium fluoride prism
The super-smooth calcium fluoride prism is a high-precision optical component developed specifically for femtosecond ultrafast lasers. Relying on the excellent optical properties of calcium fluoride material and ultra-precise processing technology, it can perfectly adapt to the working environment of femtosecond lasers with high power and ultra-short pulses, providing a stable and precise optical transmission and control solution for laser optical systems.
Core product parameters
This calcium fluoride prism meets the standards of high-end optical components in terms of size, surface accuracy, Angle control, etc.
Key parameters are as follows:
Screening criteria | Specific parameters |
Dimensional standards and tolerances | L/W/H=10-50, tolerance ±0.2 |
Surface finish | 40-20 |
Surface shape accuracy | λ/4 @632.8nm |
Angle requirements | θ customizable, Angle accuracy 3 '-3 ", conventional 90° Angle tolerance ±3' |
Roughness | Ra0.2nm (Zygo profilometer 173*173um test area, 50x lens full frequency measurement) |
Core material | Calcium fluoride |
Core product advantages
Superior substrate characteristics:
High-purity calcium fluoride is used as the core material, featuring wide-band transmission, high laser durability, low dispersion and low absorption, which can effectively withstand the working intensity of femtosecond ultrafast lasers and reduce light loss.
Ultra-smooth surface process:
Roughness as low as Ra0.2nm, surface finish up to 40-20 standard, significantly reduces laser scattering loss, avoids laser transmission quality affected by surface defects, meets the requirements of precision optical systems.
High-precision shape and position control:
Surface shape accuracy up to λ/ [email protected], dimensional tolerance strictly controlled within ±0.2, Angle support for customization and accuracy up to 3 '-3 ", ensuring optical Angle and shape and position accuracy to meet the assembly and usage requirements of different optical systems.
Customized fit capability:
Angle parameters can be customized and developed according to the actual application scenarios of customers, flexibly matching various optical design requirements of femtosecond ultrafast lasers to enhance product and equipment fit.
Core application areas
Mainly used in the field of femtosecond ultrafast lasers, it can serve as a key optical component in femtosecond laser optical systems and is widely applicable to various scenarios relying on femtosecond ultrafast laser technology, such as laser processing, laser research, precision optical inspection, etc.
Premium Calcium Fluoride Substrate:
Unlocking Deep UV Performance
Our Ultra-smooth Calcium Fluoride Prism is crafted from high-purity single-crystal calcium fluoride (CaF₂) with minimal oxygen and metal impurities. It offers an ultra-broad spectral transmission range from 0.15μm (deep UV) to 10μm (mid-IR), with transmittance exceeding 90% in the 0.2-8μm band. The single-crystal structure minimizes birefringence and scattering. making it ideal for polarization-sensitive applications. Calcium fluoride’s low refractive index dispersion ensures accurate spectral separation, while its high laser damage threshold (LIDT >15 J/cm² @193nm) enables safe use in high-energy excimer laser systems. The substrate undergoes strict crystal orientation control to optimize transmission and reduce optical losses.
Ultra-precision processing techniques:
Ensuring ultra-smoothness and precise angles
Our Ultra-smooth Calcium Fluoride Prism is manufactured using advanced super-precision processing technologies, including diamond grinding, chemical mechanical polishing (CMP), and ion beam figuring. The optical surfaces achieve an ultra-low roughness of <0.1nm RMS, eliminating micro-scratches and defects that could scatter deep UV light. Angular accuracy is controlled within <5 arc seconds, and apex angle tolerance within ±1 arc second, ensuring precise light deflection and dispersion. The prism's clear aperture exceeds 90% of the total area, maximizing active light transmission. Edge chamfering (0.2-0.5mm×45°) prevents chipping and improves handling safety, while the entire manufacturing process is conducted in a low-humidity cleanroom to avoid surface hydration.
Core performance advantages:
Suitable for demanding deep UV scenarios Ultraopto’s Ultra-smooth Calcium Fluoride Prism boasts exceptional environmental stability, with resistance to thermal shock and chemical corrosion (excluding strong acids and alkalis). The ultra-smooth surfaces minimize reflection loss in deep UV applications, This reduces the need for additional anti-reflection coatings. The prism has minimal thermal expansion (18.8×10⁻⁶/℃) and maintains optical performance across a temperature range from -50℃ to 150℃. Its high mechanical strength and scratch resistance (Mohs hardness 4) ensure durability during assembly and use. The prism's broadband transmission makes it versatile for multi-wavelength systems. eliminating the need for multiple wavelength-specific prisms.
Full-scenario application coverage:
Empowering deep ultraviolet and infrared optics Our Ultra-smooth Calcium Fluoride Prism is widely applied in cutting-edge industrial and scientific fields. In semiconductor lithography, it serves as a beam steering and dispersion component in 193nm ArF excimer laser systems, enabling high-resolution wafer patterning. For deep UV spectroscopy and environmental monitoring, it provides accurate spectral separation of trace gases and pollutants. In high-power laser systems, it deflects and shapes laser beams for material processing and scientific research. The prism also finds use in aerospace remote sensing, medical laser devices and quantum optics experiments, delivering reliable performance in deep UV, visible and infrared spectral ranges.
Customized services:
Meeting personalized needs As a leading manufacturer of calcium fluoride optical components, Ultraopto offers fully customized Ultra-smooth Calcium Fluoride Prism solutions to meet your unique application requirements. Our professional R&D team can tailor key parameters including prism type (right-angle, equilateral, dispersing), dimensions (5mm-100mm+), angular accuracy (down to <2 arc seconds), Surface roughness (down to 0.05nm RMS) and crystal orientation. We support custom edge treatment and mounting configurations for specific system integration needs. All custom prisms undergo multi-stage strict quality inspection, including transmission measurement, angular verification, surface roughness testing and environmental stability assessment. with a detailed quality report provided to ensure compliance with your design specifications.
Quality Assurance and Technical Support:
Your Trusted Choice Backed by advanced calcium fluoride processing technology and a complete quality control system, Ultraopto ensures stable batch supply and consistent product quality. Our production processes adhere to international deep UV optical standards, with each prism subjected to rigorous testing using UV-IR spectrophotometers and laser interferometers. We provide professional technical consultation on prism selection, spectral optimization and handling precautions (to prevent surface hydration), helping you maximize performance and service life. Whether you need standard prisms for spectroscopy or custom high-precision components for lithography, Ultraopto’s Ultra-smooth Calcium Fluoride Prism delivers exceptional value and reliability.
For more detailed technical parameters, product quotation information or custom design solutions for our Ultraopto Ultra-smooth Calcium Fluoride Prism, please contact our professional sales and technical team through the official website, and we will provide you with efficient, personalized and professional optical solutions.
