Hochreflektierende Spiegel (optimierte GDD)

Hochreflektierende Spiegel (optimierte GDD)

Material UVFS
Diameter tolerance +0/-0.1 mm
Thickness tolerance ±0.1 mm
Clear Aperture >90%
Surface quality 20-10 S-D
Surface flatness <λ/8 @ 632.8 nm
Reflection GDD for s polarization -10 fs² to 10 fs²
Reflection GDD for p polarization -20 fs² to 20 fs²
Protective chamfers <0.25 mm x 45°
Coating adhesion and durability Per MIL-C-675A
Laser damage threshold reports www.altechna.com/lidt
Low GDD Ultrafast mirrors are designed for femtosecond applications to provide an optimized performance at certain wavelength and angle of incidence (AOI). This is achieved by careful selection of coating stacks to combine high reflectivity and low GDD value (from -10 fs2 to 10 fs2 at design bandwidth) at the same time. Such coatings are used for external beam manipulation applications where pulse broadening effect is undesirable. Low GDD Ultrafast mirrors are intended for Ti:Sapphire, Nd:Glass, Er:Glass or Ytterbium doped host based lasers working in femtosecond regime. Variety of catalogue components allows to choose the right mirror for fundamental wavelength as well as for harmonics.

White papers:
varna Other dimensions and wavelengths are available in small and mass production quantities
varna GDD values ranges from -10 fs2 to 10 fs2 at design bandwidth

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