Metallic Film High Reflectivity Mirror
High reflectors of Metallic film high reflectivity mirrors coated with metal coatings on optical substrates, which can improve light reflectivity to a very high level. The metallic film mirrors are extensively applied in laser systems, optical experiments, scientific research instruments, and optical processing equipment. Compared with dielectric film mirrors, the metal film mirrors have a wide wavelength range, high reflectivity, and good environmental adaptability, especially suitable for broad-spectrum lasers and high-power light sources.
Features
- High reflectivity: It achieves a high reflectivity of more than 95% in a wide range of wavelengths to ensure efficient utilization of the optical path.
- Wide band coverage: Suitable for various spectral bands such as UV, VIS, NIR, etc.
- High power resistance: It can resist very high power density beams for applications such as laser processing and scientific research experiments.
- Good environmental stability: Strong resistance to oxidation, stable optical performance for long-term use.
- Several substrates available: Including glass, fused silica, ceramic, and metal to satisfy various systems’ needs.
Share to:
Customization Capabilities
- Size and shape: Metal thin-film high-reflectivity mirrors can be customized according to requirements: round, square, or special shapes.
- Coating type: Silver film, aluminum film, and gold film can be selected to meet different wavelength bands and power requirements.
- Band and angle: High reflection performance can be customized for specific ranges of wavelength and angle of incidence.
- Optical interface: Custom optical element interfaces, like collimators, fiber optic adaptation, etc.
Applications / Typical Uses
- Laser systems: Cavity mirrors, beam steering, and laser shaping.
- Optical experiments: Interferometers, spectroscopy, and research setups.
- Scientific research instruments: Microscopes, telescopes, and precision optical devices.
- Optical processing equipment: Laser cutting, welding, engraving, and marking systems.
- Photonics and imaging: Beam control, optical communication, and imaging systems.
Frequently Asked Questions (FAQs)
Q: For which laser bands is a metallic film high reflectivity mirror suitable?
A: Silver film is suitable for visible to infrared, aluminum film is suitable for UV to visible light, and gold film is suitable for the infrared band.
Q: Can a metallic film high reflectivity mirror be used for a long time?
A: Yes, but it is to be avoided for a long time in high humidity and highly corrosive environments, and in case of need, it shall be used along with protective covers.
Q: Can a metallic film high reflectivity mirror be cleaned?
A: Yes, but one should use professional methods of optical cleaning to avoid scratches or corrosion on the film layer.
Coating Maintenance
- Wipe the dust off gently with a microfiber cloth or optical paper.
- Do not use acidic or strong cleaning agents.
- When used in high-humidity or dust environments, it can be equipped with a protective cover or sealing device.
- A metallic film high reflectivity mirror for long-term storage should be housed in a dry, dark, dustproof area.
Precautions
Avoid direct contact with mirrors to prevent fingerprints or scratches. Safety operating procedures should be strictly followed during operations in a high-power laser environment.
Avoid strong acids, alkalis, or corrosive gases for extended periods of time. If you find a decrease in reflectivity or any sort of deterioration in the film layer, immediately stop its use and request your Hobbite for maintenance or replacement.
Detailed Parameters
Parameter Category | Typical Options | Explanation |
Coating materials | Silver (Ag), Aluminum (Al), Gold (Au) | Selected depending upon the band and power |
Base material | BK7, Fused Silica, Ceramic, Metal | Different thermal expansion and mechanical strengths |
Reflectivity | 95–99% | Band correlated |
Operating band | 200–2500 nm | UV–NIR wide band |
Angle of incidence | 0–45° | Customizable |
Light resistance power | ≤10 W/cm² | High power application parameters |
Size | 5 mm–200 mm, or customized | Round, square, etc. |
