Surface cleaning and etching of rare-earth-doped phosphate glass

Amy Suzanne Barnes; Carlo G. Pantano; Samuel D. Conzone

doi:10.1117/12.446886

2 November 2001 Surface cleaning and etching of rare-earth-doped phosphate glass

Amy Suzanne Barnes, Carlo G. Pantano, Samuel D. Conzone

Proceedings Volume 4452, Inorganic Optical Materials III; (2001) https://doi.org/10.1117/12.446886
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

The surface reactions of phosphate glasses are important for the processing and application of photonic devices, biomedical materials and conventional optical components. Of particular concern are the leaching of optically-active dopant species, surface layer formation and roughening during polishing, cleaning and other fabrication processes. In this study, the effects of various cleaning treatments, and both acid and base etching, were evaluated using surface analytical techniques (XPS, AFM). It is shown that in these phosphate glasses, the aluminum and rare-earth oxides have limited aqueous solubility, whereas the phosphate network is soluble over a wider range of pH. Thus, under those conditions where polishing damage can be removed by etching the surface, a localized precipitation of rare-earth oxides occurs which influences the final roughness and surface composition. Conversely, under conditions where this precipitation can be eliminated, an in-depth leaching of the surface occurs. These aqueous surface reactions were similar for both the optically-active and passive IOG-1 glasses. An optimized surface preparation method is described.

Citation Download Citation

Amy Suzanne Barnes, Carlo G. Pantano, and Samuel D. Conzone "Surface cleaning and etching of rare-earth-doped phosphate glass", Proc. SPIE 4452, Inorganic Optical Materials III, (2 November 2001); https://doi.org/10.1117/12.446886

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available