Sunday Optics manufactures high-reflectivity dielectric mirrors for laser systems, medical and diagnostic instruments, scientific equipment, and OEM optical assemblies. A dielectric mirror uses a multilayer optical coating designed for a specified wavelength, angle of incidence (AOI), and polarization, helping achieve high reflectivity within the required operating band.
The Dielectric coated high reflection mirror has a high reflective 99.90% can meet customers’ demands, this mirror can be used laser system, medical and many other applications.
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Custom Dielectric Mirror Options
Our current dielectric mirror specifications cover diameters from 2 mm to 400 mm, with substrate options including N-BK7, sapphire, fused silica, CaF2, silicon, and germanium. Standard requirements include 40-20 surface quality and λ/4 flatness. Reflectivity can reach up to 99.90% for a qualified coating design; the final value should always be stated together with the wavelength range, AOI, polarization, and test conditions.
Dielectric mirrors are performance-specific optical components. The coating wavelength, angle of incidence, polarization, substrate, clear aperture, surface quality, flatness, and laser loading should be considered together when selecting a mirror.
Laser line dielectric mirrors are optimized for a specific laser wavelength or a narrow wavelength band. They are suitable for beam steering, beam folding, laser alignment, and resonator applications where high reflectivity and low optical loss are important.
Broadband dielectric mirrors are designed to maintain high reflectivity across a wider wavelength range. They can be used in multi-wavelength laser systems, spectroscopy, imaging, microscopy, and other optical instruments. For broadband applications, provide all operating wavelengths together with the expected AOI and polarization
Substrate selection depends on the operating wavelength, thermal conditions, mirror size, optical power, and system budget. N-BK7, sapphire, fused silica, CaF2, silicon, and germanium can be evaluated for different UV, visible, NIR, and IR applications. Round, square, rectangular, and other custom geometries can be reviewed according to the optical path and mounting requirements.
Specifications
| Diameter | 2mm to 400mm |
| Diameter Tol. | +/-0.1 |
| Material | Bk7 sapphire fused silica, ZnS2, CaF2, Si, Ge. |
| Surface Quality | 40-20 standard |
| Flatness | 1/4 lambda |
| Chamfer | 0.25mmx45degree |
| Coating | Dielectric, R>99% |
| Selection Factor | Dielectric Mirror | Metal Mirror |
|---|---|---|
| Reflectivity | Very high reflectivity within the designed wavelength band | Generally suitable for broader spectral reflection |
| Bandwidth | Coating-specific and designed for a target wavelength range | Usually provides broader wavelength coverage |
| Selection Factors | Wavelength, AOI, polarization, coating design, and laser power | Bandwidth, environment, reflectivity, and cost |
| Applications | Laser systems, beam steering, resonators, spectroscopy, and precision optics | Broadband reflection and general optical systems |
Applications of Dielectric Mirrors
◆ Laser beam steering and beam folding
◆ Laser resonators and cavity optics
◆ Medical and diagnostic optical instruments
◆ Spectroscopy and interferometry systems
◆ Microscopy and scientific imaging
◆ Machine vision, optical alignment, and inspection equipment
Why Choose Sunday Optics Dielectric Mirrors?
Sunday Optics is a dielectric mirror manufacturer combining optical design, substrate processing, coating, and assembly. We help OEM buyers match mirror specifications to their optical systems, with support for sample evaluation and volume production.
Our dielectric coated mirrors offer reflectivity above 99% within the agreed coating specification, helping reduce reflection losses in laser systems. Share your operating wavelength, angle of incidence, and polarization so we can evaluate the coating requirements for your application.
Match the mirror to your beam size and mounting space. Our published diameter range covers 2–400 mm, with substrate options including BK7, fused silica, sapphire, CaF₂, silicon, and germanium. We review material and dimensional requirements together to support integration into your equipment.
Work with one manufacturer for grinding, polishing, coating, and optical assembly. Keeping these processes within Sunday Optics simplifies technical communication and helps coordinate substrate specifications with coating requirements throughout your project.
Our metrology equipment includes Zygo interferometers and spectrophotometers for evaluating surface form and spectral performance. Discuss your inspection and documentation requirements before ordering so the acceptance criteria for your dielectric laser mirrors are clear.
Sunday Optics supports both sample orders and mass production of custom optical mirrors. Start with samples to evaluate mechanical fit and optical performance, then plan production quantities around your approved requirements.
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