Please note that this website uses cookies. By clicking “Agree” or continuing to browse, you agree to the use of cookies. You can revoke your consent at any time by changing your web browser settings. More about cookies – Cookie Policy.
Technological Capabilities
Coating types
Highly reflective
Anti-reflective
Partially reflective
Wavelength separating
Broadband coatings
Polarizing coatings
Available Coating Technologies
Magnetron Sputtering
Magnetron Sputtering
PROS:
- Big load volumes – the best solution for mass production
- Unit price is lower than IBS coated element
- Most of the coating properties are identical to IBS properties – very low scattering and absorption losses, almost bulk-like layer density, excellent environmental stability, very high spectral accuracy, high LIDT in VIS, IR range
- Stress is lower than in IBS coatings
- Excellent solution for custom shape and size substrates
CONS:
- Expensive for small volumes
- No UV capabilities at the moment, technology under development
Ion Beam Sputtering
Ion Beam Sputtering
PROS:
- Very high spectral coating accuracy
- Lowest scattering and absorption losses
- Highest LIDT in VIS – IR range
- Excellent stability and performance in harsh environments (space, defense applications)
- Stress-controlled by complementary processes
CONS:
- Expensive
Ion Assisted Deposition
Ion Assisted Deposition
PROS:
- IAD or PIAD option available
- Almost no sensitivity to temperature and humidity
- Low stress coatings (controlled by the source parameters)
- Stress-controlled cost-performance ratio
CONS:
- Smaller variety of coating materials available
Electron Beam Evaporation
Electron Beam Evaporation
PROS:
- Wide spectral range – from MUV to IR
- High deposition rates
- Low stress coatings
- Good cost-performance ratio
CONS:
- Sensitive to humidity and temperature of the environment
| Magnetron Sputtering | Ion Beam Sputtering | Ion Assisted Deposition | Electron Beam Evaporation | |
|---|---|---|---|---|
| Spectral ranges | From VIS to IR-B | From MUV to IR-B | From MUV to IR-B | From MUV to IR-B |
| Deposition rate | 2-6 Å/sec | 1-3 Å/sec | 1-5 Å/sec | >5 Å/sec |
| One inch substrates per run | 518 pcs. | 53 pcs. | 90 pcs. | 90 pcs. |
| Thermal conductivity | High | High | Medium | Low |
| Temperature range during process | 20-100 °C | 20-100 °C | 20-240 °C | 80-300 °C |
| Density / Porosity | Near bulk | Near bulk | Dense | Porous |
| Adhesion / Durability | Excellent | Excellent | Good | Low |
| Sensitivity to humidity | No | No | Yes, small | Yes |
| Aging effects | No | No | Yes, small | Yes |
| Coating spectral accuracy | High | High | Medium | Low |
| Maximum HR @ 1064 reflectivity | >99.96 % | >99.99 % | 99.9 % | 99.5-99.8 % |
| Intrinsic stress | 200-400 MPa | 300-600 MPa | ~100 MPa | <100 MPa |
Spectral performance
Optomechanical Engineering
- Custom optomechanical system design as per application requirements
- Customized optical system with 6 weeks delivery
- Moving lens systems with pointing stability: <0.1 mrad
- Lens movement speeds up to – 0.3 m/s
- UV-compatible solutions
- Optomechanical designs are made using SolidWorks
Assembling
- Customer-defined product assembling (optics + mechanics)
- UV and thermal adhesive curing ovens
- Laser engraving
- Clean environment – laminars
Optical Design
- Optical system development according to customer-specific application
- High Laser Damage threshold design approach
- Designs are made using ZEMAX software
