Extreme low-loss Mirrors
Overview
Are you involved in specific applications that require extreme low-loss optics? Our new and improved mirrors complement OPTOMAN's product range. IBS coated mirrors deliver a maximum reflectivity of R>99.998% and total losses <15 ppm (absorption, scatter, and transmission) at a discrete wavelength and angle of incidence.
Coatings are applied on high purity fused silica substrates (plane, spherical, or wedged) and polished to an RMS roughness of < 2 Å. Simultaneously, the coatings feature high environmental stability due to the near-bulk packing density of coating films that experience virtually no performance shift due to environmental factors, such as temperature and humidity.
Very high reflectance values for intricate coating designs such as GTI laser mirrors with R>99.95%, or thin-film polarizers with Tp/Ts >10000:1, can be utilized as well.
Features
Reflectance >99.998%
Mirrors are available with a CRD measurement that justify reflectivity and loss values.
High laser induced damage threshold
Ultra-hard dielectric coatings for high damage threshold in most demanding laser applications. LIDT values reach >50 J/cm2 @ 1064 nm, 10 ns, S-on-1.
Extremely low absorption and scatter loss
IBS coated mirrors feature an absorption below 1 ppm.
Super polished fused silica substrates
Substrates with RMS roughness <1 Å are mandatory for making extreme low-loss coatings.
Custom - Size range from 5 mm up to 50 mm.
- Spectral range from 500 nm up to 2000 nm.
- Custom shape, curvature, size.
- Optimization for specific AOI or AOI cone.
- Multi-wavelength design and broadband configuration.
- Optimization for ultrafast applications.
Experimental data
Cavity ring-down measurement
In 00 cavity: HR>99.99867% @ 1064 nm. Loss = 13.3 ppm (absorbtion, scatter, transmission)
In 450 cavity: HRs>99.99857% & HRp>99.99816% @ 1064 nm. Loss = 14.3 ppm (S-pol) and 18.4 ppm (P-pol)
