Our single-sided ultra-smooth plano-concave mirror substrate is a high-precision optical core component, crafted through ultra-precision cutting and polishing processes, with customized structure, superior optical accuracy and multi-material compatibility, precisely meeting the demanding application requirements in high-power lasers, high-precision optical inspection, semiconductor manufacturing and inspection, etc. It provides low-loss, high-stability light control solutions for precision optical reflection systems.
Core Product Parameters
External dimensions parameters
Project | Specific metrics |
Diameter (D) | φ8-φ50.8mm (tolerance ±0.1mm); φ50.8-φ100mm (tolerance ±0.1mm) |
Thickness (H) | 4-8mm (tolerance ±0.5mm); ≥D/8 (tolerance ±0.5mm) |
Beveling | 0.2 ~ 0.5 x 45 ° |
Tee size | 1/2D < Tee size < D (customization supported) |
Surface shape accuracy and surface defects
Project | Specific indicators |
Surface shape accuracy | λ/2-λ/10 @632.8nm |
Parallax | < 15" |
Roughness (Ra) | Ra0.12nm (Zygo profilometer, 173×173um, 50x lens full frequency measurement) |
Surface defects | 10-5 |
Ball center accuracy | 30 "- 3 ' |
Base material
ULE glass, fused silica, microcrystalline glass, sapphire, K9 glass, monocrystalline silicon Core product advantages
Customized structural design:
Open ball size customized to demand, diameter and thickness divided to fit different optical system assembly requirements, standardized beveling processing, high flexibility and adaptability.
Ultra-precision optical indicators:
Surface shape accuracy up to λ/2-λ/[email protected], ball center accuracy 30 "-3 ', parallelism < 15", roughness as low as Ra0.12nm, significantly reducing light reflection loss and ensuring precise and stable light signal transmission.
High specification surface quality:
Surface defect up to 10-5 industry high standard, no obvious defect, effectively avoiding light scattering and reflection deviation, meeting the extreme requirements of high-precision optical applications.
Flexible selection of multiple materials:
We offer a variety of high-end base material options, which can be customized according to the characteristics of scenarios such as semiconductor manufacturing and high-power laser applications, to meet the physical property requirements of different working conditions.
High-precision size control:
Full specification diameter tolerance strictly controlled ±0.1mm, thickness tolerance ±0.5mm, high size accuracy, can be directly assembled for use, reducing customer secondary processing costs and improving production efficiency.
Core application areas
Core applications in high-power lasers, high-precision optical inspection, semiconductor manufacturing, semiconductor inspection, etc., are key basic components of various high-end precision optical reflection systems, providing core optical support for the stable and efficient operation of equipment.
High-quality substrate selection:
Laying the foundation for focused performance
Crafted from high-quality optical materials such as fused silica (JGS1) and low-dispersion optical glass (H-K9L), our single-sided ultra-smooth plano-concave mirror substrate offers excellent optical homogeneity and mechanical stability. Fused silica variants excel in the UV to NIR spectral range (180nm-2μm) and resist high-power laser damage. making them ideal for laser focusing applications. H-K9L substrates provide cost-effective performance for visible-range systems with good transmittance and low chromatic dispersion. The substrate blank undergoes strict quality control to eliminate bubbles, inclusions and internal stress, ensuring consistent focusing performance across the entire concave surface.
Super-precision processing technology:
Achieving ultra-smooth single-sided surface and precise curvature
Our Single-sided Ultra-smooth Plano-concave Mirror Substrate is manufactured using advanced super-precision processing technologies, including chemical mechanical polishing (CMP) for the concave surface and precision grinding for the flat back surface. The concave surface achieves an ultra-low roughness of <0.1nm RMS and a curvature radius tolerance of ±0.005mm, ensuring precise light focusing into a sharp focal point. The flat back surface features a flatness of λ/5 @632.8nm for stable mounting without tilting. Edge chamfering (0.3-0.6mm×45°) prevents chipping during coating and handling, while the single-sided design optimizes cost-effectiveness for applications requiring only one focusing surface.
Core performance advantages:
Suitable for directional focusing scenarios Ultraopto’s Single-sided Ultra-smooth Plano-concave Mirror Substrate boasts exceptional surface quality with a scratch-dig rating of 20/10, ensuring optimal adhesion for high-reflection coatings. The positive focal length (equal to half the curvature radius) enables flexible focusing distance customization, It caters to diverse application needs. The substrate demonstrates high mechanical rigidity and dimensional stability, with a thickness tolerance of ±0.01mm to ensure consistent mounting height. The flat back surface features a ground finish to enhance adhesion to mounting fixtures and prevent slippage during use. The ultra-smooth concave surface minimizes light scattering. maximizing focusing efficiency for high-power laser systems.
Full-scenario application coverage:
Empowering focus and beam control Our Single-sided Ultra-smooth Plano-concave Mirror Substrate is widely applied in industrial, scientific and consumer optical fields. In laser systems, it focuses collimated laser beams into high-intensity spots for material cutting, welding and marking. For imaging devices such as telescopes and microscopes, it collects and focuses light to enhance resolution and brightness. In optical measurement instruments, it provides precise focusing for dimensional measurement and surface defect detection. The substrate also finds use in medical laser devices, aerospace sensors and laboratory optical setups, delivering reliable focusing performance for diverse optical systems.
Customized services:
Meeting personalized needs As a leading manufacturer of super-smooth mirror substrates, Ultraopto offers fully customized Single-sided Ultra-smooth Plano-concave Mirror Substrate solutions to meet your unique application requirements. Our professional R&D team can tailor key parameters including substrate material (fused silica, H-K9L), diameter (8mm-200mm+), curvature radius (5mm-500mm+), Surface roughness (down to 0.05nm RMS) and focal length. We support custom thickness specifications and edge treatment designs for specific mounting needs. All custom substrates undergo multi-stage strict quality inspection, including surface roughness measurement, curvature verification, flatness testing and dimensional accuracy 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 super-precision manufacturing technology and a complete quality control system, Ultraopto ensures stable batch supply and consistent product quality. Our production processes adhere to international precision optical standards, with each substrate subjected to rigorous testing using atomic force microscopes (AFM) and laser interferometers. We provide professional technical consultation on substrate selection, coating compatibility and focusing distance optimization, helping you achieve optimal performance for your specific application. Whether you need standard substrates for laser systems or custom high-precision bases for imaging devices, Ultraopto’s Single-sided Ultra-smooth Plano-concave Mirror Substrate delivers exceptional value and reliability.
For more detailed technical parameters, product quotation information or custom design solutions for our Ultraopto Single-sided Ultra-smooth Plano-concave Mirror Substrate, please contact our professional sales and technical team through the official website, and we will provide you with efficient, personalized and professional optical solutions.
