Standard-compliant measurement services

The group „Characterization“ of the department “Laser Components” offers a broad spectrum of measurement procedures for the highly precise characterization of optical components.

 

At the Laser Zentrum Hannover e.V. (LZH), the following methods can be carried out:

  • Measurement of the laser-induced damage threshold and long-time stability of optical materials and coatings
  • Measurement of optical losses:

    • Absorption (using laser calorimetry)
    • Total and angle-resolved scattering
    • Laser-induced fluorescence
    • Total losses using Cavity-Ring-Down
  • Spectrophotometry from the mid-IR to the soft X-ray range
  • Consulting for the power stability and optimization of laser optics

 

Measurement method λ τH Note ISO standard
         
Laser-induced damage 193 nm 15 ns 150 Hz, flat-top 21254-2
  213 nm 4 ns 100 Hz 21254-2
  355 nm 5 ns   21254-2
  532 nm 6,5 ns   21254-2
  780 nm 180 fs 1 kHz 21254-2
  1064 nm 8 ns ≥ 100 Hz, Gaussian model 21254-2
    75 ps 20 Hz 21254-2
  1064 nm 8 ns Vacuum, 2ω,3ω,4ω 21254-2
Survival test 1064 nm ≤ 8ns 2ω,3ω,4ω 21254-3
Contamination test 1064 nm ≤ 8ns 2ω,3ω,4ω  
         
Absorption test 193 nm 15 ns 2 kHz, ≥ 50 ppm 11551
  266 nm   ≤ 10 ppm 11551
  355 nm   ≤ 7 ppm 11551
  532 nm   ≤ 1 ppm 11551
  1064 nm   ≤ 0,1 ppm 11551
  680 - 2000 nm   ≤ 5 ppm 11551
         
Cavity-Ring-Down-Spectroscopy (CRDS) 1064 nm   ~ 5 ppm  
  532 nm   AOI 0°, 30°, 45°  
  532 nm      
         
Total and angle-resolved scattering 355 nm   Gaussian model, ≤ 1 ppm 13696
  532 nm   & nearly 4π space 13696
  633 nm     13696
  1064 nm     13696
  120 - 280 nm   Beam 1.5×3 mm²  
         
VUV/DUV spectroscopy 120 - 280 nm   R, T, mappings in R&T 15368
Soft X-ray/EUV spectroscopy 2,7 nm
20 nm
  Samples up to Ø 50mm  
Laser-induced fluorescence 200 - 1700 nm   various excitation wavelengths  
         
Durability test     Abrasion, humidity, heat, stripping etc. 9211

 

This service is, among others, relevant for the following areas:

Consulting, development and contract research:

  • High power laser optics
  • Process and system development
  • Technology consulting and transfer

 

We will be happy to discuss your individual requirements. Please feel free to contact us.