Cavity ringdown measurements of high-reflection mirrors at 1. 06. mu. m

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A 1064-nm-cavity-ringdown reflectometer was used to study reflectances of a variety of high reflectance dielectric coatings and silver mirrors. Reflectances of the dielectric coatings were measured at near-normal angle of incidence. The multilayer dielectric high reflectors included ZrO/sub 2/, HfO/sub 2/, SiN/sub 4/, TiO/sub 2/, and Al/sub 2/O/sub 3/, which were used in combination with SiO/sub 2/ in conventional quarter-wave designs. Reflectors from more than a dozen vendors were surveyed in this effort. Metallic reflectors investigated were silver and silver protected with a thin (10 /angstrom/) alumina overcoat. These reflectors were tested at both normal incidence and at high (grazing) ... continued below

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Pages: 10

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Jolin, L.J.; Sanders, V.R. & Turner, T.P. January 1, 1988.

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A 1064-nm-cavity-ringdown reflectometer was used to study reflectances of a variety of high reflectance dielectric coatings and silver mirrors. Reflectances of the dielectric coatings were measured at near-normal angle of incidence. The multilayer dielectric high reflectors included ZrO/sub 2/, HfO/sub 2/, SiN/sub 4/, TiO/sub 2/, and Al/sub 2/O/sub 3/, which were used in combination with SiO/sub 2/ in conventional quarter-wave designs. Reflectors from more than a dozen vendors were surveyed in this effort. Metallic reflectors investigated were silver and silver protected with a thin (10 /angstrom/) alumina overcoat. These reflectors were tested at both normal incidence and at high (grazing) angles. The results of these studies show that, although high reflectances (R > 0.9990) can be achieved for 1064-nm-multilayer dielectrics, the majority are not of this caliber. Reflectances for dielectric designs ranged from 0.96 to >0.9990. The silver mirrors exhibited predictable behavior with reflectances of 0.992 at near-normal angle. 1 ref., 4 figs., 4 tabs.

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Pages: 10

Notes

NTIS, PC A02/MF A01 - OSTI; 1.

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  • Boulder damage symposium, Boulder, CO, USA, 26 Oct 1988

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  • Other: DE89006512
  • Report No.: LA-UR-89-293
  • Report No.: CONF-8810296-1
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6506620
  • Archival Resource Key: ark:/67531/metadc1211734

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  • January 1, 1988

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  • July 5, 2018, 11:11 p.m.

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  • Sept. 5, 2018, 2:18 p.m.

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Jolin, L.J.; Sanders, V.R. & Turner, T.P. Cavity ringdown measurements of high-reflection mirrors at 1. 06. mu. m, article, January 1, 1988; United States. (digital.library.unt.edu/ark:/67531/metadc1211734/: accessed January 22, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.