Absorption calorimetry and laser induced damage threshold measurements of AR-coated ZnSe and metal mirrors at 10.6 μm

Research output: Contribution to conference › Paper › Research › peer review

Authors

  • Manfred Rahe
  • E. Oertel
  • L. Reinhardt
  • Detlev Ristau
  • Herbert Welling

External Research Organisations

  • Laser Zentrum Hannover e.V. (LZH)
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Details

Original languageEnglish
Pages113-126
Number of pages14
Publication statusPublished - 1991
Externally publishedYes
Event22nd Annual Boulder Damage Symposium on Laser-Induced Damage in Optical Materials: 1990 - Boulder, CO, USA
Duration: 24 Oct 1990 → 26 Oct 1990

Conference

Conference22nd Annual Boulder Damage Symposium on Laser-Induced Damage in Optical Materials: 1990
CityBoulder, CO, USA
Period24 Oct 1990 → 26 Oct 1990

Abstract

Absorption and pulsed laser induced damage of antireflective coatings on ZnSe and high reflecting metal mirrors were studied. As deposition materials for the AR-coatings germanium, zinc sulfide, zinc selenide, cadmium selenide and different fluorides were selected. For protecting and enhancing of metal mirrors zinc sulfide were used in conjunction with ThF4 as low index material. The films were deposited by thermal evaporation. Absorption measurements were performed with the aid of a laser calorimeter and a cw CO2-laser. Single-shot and multiple-shot (prf, 3 Hz) damage thresholds were measured by a computer controlled test facility using 100 ns pulses from a TEA CO2-laser. The gaussian beam was focussed down to a diameter of 1.4 mm on the sample surface. A scatter measurement system and an on-line video microscope were applied for damage detection. Damage morphology was investigated by Nomarski- and scanning electron microscopy.

ASJC Scopus subject areas

Cite this

Absorption calorimetry and laser induced damage threshold measurements of AR-coated ZnSe and metal mirrors at 10.6 μm. / Rahe, Manfred; Oertel, E.; Reinhardt, L. et al.
1991. 113-126 Paper presented at 22nd Annual Boulder Damage Symposium on Laser-Induced Damage in Optical Materials: 1990, Boulder, CO, USA.

Research output: Contribution to conference › Paper › Research › peer review

Rahe, M, Oertel, E, Reinhardt, L, Ristau, D & Welling, H 1991, 'Absorption calorimetry and laser induced damage threshold measurements of AR-coated ZnSe and metal mirrors at 10.6 μm', Paper presented at 22nd Annual Boulder Damage Symposium on Laser-Induced Damage in Optical Materials: 1990, Boulder, CO, USA, 24 Oct 1990 - 26 Oct 1990 pp. 113-126. https://doi.org/10.1520/stp23619s
Rahe, M., Oertel, E., Reinhardt, L., Ristau, D., & Welling, H. (1991). Absorption calorimetry and laser induced damage threshold measurements of AR-coated ZnSe and metal mirrors at 10.6 μm. 113-126. Paper presented at 22nd Annual Boulder Damage Symposium on Laser-Induced Damage in Optical Materials: 1990, Boulder, CO, USA. https://doi.org/10.1520/stp23619s
Rahe M, Oertel E, Reinhardt L, Ristau D, Welling H. Absorption calorimetry and laser induced damage threshold measurements of AR-coated ZnSe and metal mirrors at 10.6 μm. 1991. Paper presented at 22nd Annual Boulder Damage Symposium on Laser-Induced Damage in Optical Materials: 1990, Boulder, CO, USA. doi: 10.1520/stp23619s
Rahe, Manfred ; Oertel, E. ; Reinhardt, L. et al. / Absorption calorimetry and laser induced damage threshold measurements of AR-coated ZnSe and metal mirrors at 10.6 μm. Paper presented at 22nd Annual Boulder Damage Symposium on Laser-Induced Damage in Optical Materials: 1990, Boulder, CO, USA.14 p.
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abstract = "Absorption and pulsed laser induced damage of antireflective coatings on ZnSe and high reflecting metal mirrors were studied. As deposition materials for the AR-coatings germanium, zinc sulfide, zinc selenide, cadmium selenide and different fluorides were selected. For protecting and enhancing of metal mirrors zinc sulfide were used in conjunction with ThF4 as low index material. The films were deposited by thermal evaporation. Absorption measurements were performed with the aid of a laser calorimeter and a cw CO2-laser. Single-shot and multiple-shot (prf, 3 Hz) damage thresholds were measured by a computer controlled test facility using 100 ns pulses from a TEA CO2-laser. The gaussian beam was focussed down to a diameter of 1.4 mm on the sample surface. A scatter measurement system and an on-line video microscope were applied for damage detection. Damage morphology was investigated by Nomarski- and scanning electron microscopy.",
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AU - Reinhardt, L.

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AU - Welling, Herbert

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