Evaluation of gold, silver, and dielectric-coated hollow glass waveguides

Kaori Matsuura; Yuji Matsuura; James A. Harrington

doi:10.1117/1.601101

1 December 1996 Evaluation of gold, silver, and dielectric-coated hollow glass waveguides

Kaori Matsuura, Yuji Matsuura, James A. Harrington

Optical Engineering, Vol. 35, Issue 12, (December 1996). https://doi.org/10.1117/1.601101

Analytic methods involving gravimetric analysis and titration have been developed for the determination of the coating thickness of thin films used in the preparation of IR-transmissive, hollow glass waveguides. These methods not only provide a highly accurate means of determining the film thickness but also, in the case of the dielectric layer, a method for controlling and monitoring the dielectric film during the fabrication process. That is, a correlation made between the AgI thickness and the iodination time using titration methods has led to more uniform coatings. A gold-coated hollow waveguide for applications in harsh environments has also been developed. Gold films are successfully deposited on the inner surface of the glass tubing with good adhesion when a silver layer is deposited between the glass and gold surfaces. The visible and near-IR spectrum measured shows that the surface of the Au film is very smooth.

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Kaori Matsuura, Yuji Matsuura, and James A. Harrington "Evaluation of gold, silver, and dielectric-coated hollow glass waveguides," Optical Engineering 35(12), (1 December 1996). https://doi.org/10.1117/1.601101

Published: 1 December 1996

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