99.999% Spherical Reflector

A 99.999% ultra-high reflectivity spherical mirror is an optical component with a spherical reflective surface that can Youdaoplaceholder0 reflect light. Its reflectivity can reach 99.999% making it an optical component with extremely high reflectivity and extremely low light loss. It has important applications in optical communication, laser technology, laser gyro, high-power lasers, ultra-stable lasers, time-frequency transfer, quantum computing, quantum communication, quantum precision measurement, neutral atoms, cold atoms, Rydberg atoms, gravitational wave detection, etc.

Ultra-high reflectivity spherical mirrors typically use the principle of Bragg mirrors, with thin films of high and low refractive index materials alternately stacked on the substrate to form a one-dimensional photonic crystal structure. When the light sag

When directly inserted, the optical thickness of each layer of material is designed to be a quarter of the target reflection wavelength, causing the light reflected from the interfaces of each layer to undergo constructive interference, superimposing into a powerful reflected beam, while the transmitted light is greatly suppressed by destructive interference, resulting  in high reflectivity and low loss.

UItraopto Precision Optics Co. Ltd's ultra-high reflectivity spherical mirrors can be stably provided through precise control of the polishing and coating processes, and custom mirrors of various  specifications are accepted.

High-quality substrate selection: 

Meeting multi-band requirements

Our 99.999% Spherical Reflector is crafted from high-quality substrates such as borofloat glass and synthetic quartz, covering a broad spectral range from 200nm to 2500nm, precisely adapting to multispectral applications. Borofloat glass substrates offer an excellent balance of performance and value. with good mechanical strength and thermal stability for industrial optical systems. 

Synthetic quartz substrates excel in UV and high-power laser applications, featuring low thermal expansion and high laser damage resistance. All substrates undergo strict purity screening and precision processing, with surface roughness controlled below Ra 0.2nm to ensure optimal coating adhesion and light reflection performance. The spherical curvature is engineered with high precision, with a curvature radius tolerance within ±0.02mm to ensure uniform light distribution.

Advanced Coating Technology: 

Achieving Ultra-High Reflectivity across the Entire Spectrum

Our 99.999% Spherical Reflector employs advanced broadband dielectric coating technology through physical vapor deposition (PVD), achieving an ultra-high reflectivity of 99.999% across the UV, visible, and near-infrared bands. The multi-layer dielectric film design minimizes energy loss and eliminates chromatic aberration. outperforming traditional metal-coated mirrors in multispectral applications. The coating process ensures film uniformity and density, with strong adhesion that withstands repeated cleaning and harsh environmental conditions. For specific wavelength applications, we offer custom single-wavelength dielectric coatings optimized for target bands (e.g., 532nm, 1064nm), further enhancing reflectivity and performance. The back surface is ground and treated to reduce stray light interference.

Core performance advantages: 

Balancing precision and practicality

Ultraopto's 99.999% spherical reflector offers outstanding surface accuracy with a flatness of λ/4 @632.8nm, ensuring consistent reflection performance across the entire clear aperture (>90%). It features a high laser-induced damage threshold (LIDT >5 J/cm² @1064nm, 20ns), capable of withstanding high-energy laser irradiation without coating degradation. The mirror's edge thickness tolerance is controlled within +0.0/-15%, and diameter tolerance within +0/-0.2mm, facilitating seamless integration into standard optical systems. The spherical design provides uniform light distribution, making it ideal for ambient lighting, office lighting, and retail lighting applications. while maintaining precise reflection for optical instruments. The mirror exhibits excellent environmental stability, resisting temperature fluctuations and humidity for long-term reliable operation.

Our 99.999% Spherical Reflector is widely applied in industrial, scientific and consumer optical fields. In multispectral imaging systems, it collects and reflects light across multiple bands without chromatic aberration, enabling accurate material analysis and environmental monitoring. In laser systems, it functions as a beam steering component for high-power lasers, ensuring precise beam control and stability. Additionally, it is utilized in various other applications such as optical communication, medical imaging, and astronomical observation, demonstrating its versatility and adaptability across different industries. ensuring minimal energy loss and stable beam quality. For optical instruments such as spectrometers and microscopes, it provides precise light reflection for high-resolution imaging and measurement. The mirror also finds use in decorative lighting, LED fixtures and recessed lighting for uniform, soft illumination, as well as in aerospace sensors and industrial inspection equipment for reliable optical performance in harsh conditions.

Customized Services: 

Meeting Personalized Needs

As a professional manufacturer of high-precision optical mirrors, Ultraopto provides fully customized 99.999% Spherical Reflector solutions to meet your unique application requirements. Our experienced R&D team can tailor key parameters including substrate material (borofloat, synthetic quartz), diameter (25.4mm to 152.4mm+), curvature radius, spectral range, and coating type (broadband dielectric, single-wavelength dielectric). We support custom focal length tolerance (±2%) and surface quality specifications (up to 60-40 scratch-dig) to match specific optical system needs. For high-volume industrial applications, we provide stable batch supply with consistent quality, and can offer custom packaging solutions to ensure safe transportation. All custom reflectors undergo multi-stage strict quality inspection, including reflectivity measurement, surface accuracy testing and environmental stability verification, with a detailed quality report provided.

Quality Assurance and Technical Support: 

Your Trusted Choice Backed by advanced optical manufacturing technology and a complete quality control system, Ultraopto ensures reliable product quality and consistent performance. Our production processes adhere to international optical component standards, with each spherical reflector subjected to rigorous testing for reflectivity, surface accuracy and dimensional tolerance. 

We provide professional technical consultation on mirror selection, system integration and performance optimization, helping you choose the optimal solution for your application. Whether you need standard products for mass production or custom mirrors for cutting-edge research, Ultraopto's 99.999% spherical reflector offers outstanding value and reliable performance to support your projects. For more detailed technical parameters, product quotation information or custom design solutions for our Ultraopto 99.999% spherical reflector, please contact our professional sales and technical team through the official website, and we will provide you with efficient, personalized and professional optical solutions.