&lt;title&gt;Characterization of HR coatings for the megajoule laser transport mirrors&lt;/title&gt;

Fornier, Anne; Cordillot, C.; Bernardino, D.; Lam, Odile; Roussel, André; Pinot, B.; Geenen, Bernard; Leplan, H.; Alexandre, W.

doi:10.1117/12.274240

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nodular defects in multilayer dielectric films have been widely studied because of their significant impact on limiting the improvement of 1ω laser-induced damage threshold (LIDT) in the nanosecond pulse regime [1][2][3][4][5][6][7][8]. Nodules are formed by seed particles adhering to the substrate surface or coating material source ejection that becomes incorporated in the film during deposition.…”

Section: Introductionmentioning

confidence: 99%

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO₂/SiO₂ high reflectors

et al. 2012

View full text Add to dashboard Cite

Seeds are the sources for forming nodular defects that largely limit the improvement of laser-induced damage threshold of 1ω laser mirrors in the nanosecond pulse regime. To shed more light of the composition and sizes of seeds on the associated structure of nodular defects and laser damage sensitivity, nodular defects were generated in 1064 nm HfO(2)/SiO(2) high reflectors with different sizes of absorbing Au and nonabsorbing SiO(2) nanoparticles located on the surfaces of substrates. The width dimensions, inner structures, and damage morphologies of nodular defects were characterized by an atomic force microscope, a field emission scanning electron microscope, and a focused ion beam. It was found that the composition and size both influenced the structure and the laser damage of nodular defects. The width of nodules from SiO(2) seeds were larger than that formed by the same size of Au seed. A nodule grown from a small seed generally tends to have a continuous and stable boundary. The ejection fluences of nodules generated from different size absorbing Au and nonabsorbing SiO(2) seeds were totally different. The results were interpreted from the aspects of absorption cross sections of seeds and mechanical stability of nodular structures.

show abstract

Section: Introductionmentioning

confidence: 99%

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO₂/SiO₂ high reflectors

et al. 2012

View full text Add to dashboard Cite

show abstract

Environmental Influences

2005

Optical Science and Engineering

View full text Add to dashboard Cite

<title>Characterization of HR coatings for the megajoule laser transport mirrors</title>

Cited by 2 publications

References 0 publications

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO₂/SiO₂ high reflectors

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO₂/SiO₂ high reflectors

Environmental Influences

Contact Info

Product

Resources

About

<title>Characterization of HR coatings for the megajoule laser transport mirrors</title>

Cited by 2 publications

References 0 publications

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO2/SiO2 high reflectors

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO2/SiO2 high reflectors

Environmental Influences

Contact Info

Product

Resources

About

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO₂/SiO₂ high reflectors

Influence of composition and seed dimension on the structure and laser damage of nodular defects in HfO₂/SiO₂ high reflectors