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ToF-SIMS characterization of robust window material for use in diode pumped alkali lasers
Author(s): Aaron Fletcher; David Turner; Steven Fairchild; Christopher Rice; Gregory Pitz
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Paper Abstract

Developments in diode pumped alkali laser (DPAL) systems have been impeded because of the catastrophic failure of laser windows. The window’s failure is caused by localized laser-induced heating of window material. This heating is believed to occur due to increases in absorption on or near the surface of the window. This increase is believed to be caused by either adsorption of carbon-based soot from the collisional gas or by the diffusion of rubidium into the bulk material. The work presented here will focus on the diffusion of Rb into the bulk window materials and will strive to identify a superior material to use as windows. The results of this research indicate that aluminum oxynitride (ALON), sapphire, MgAl2O4 (spinel), and ZrO2 are resistant to alkali-induced changes in optical properties.

Paper Details

Date Published: 12 March 2018
PDF: 7 pages
Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 105130L (12 March 2018); doi: 10.1117/12.2286088
Show Author Affiliations
Aaron Fletcher, Air Force Research Lab. (United States)
Wright State Univ. (United States)
David Turner, Air Force Research Lab. (United States)
Steven Fairchild, Air Force Research Lab. (United States)
Christopher Rice, Air Force Institute of Technology (United States)
Gregory Pitz, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 10513:
Components and Packaging for Laser Systems IV
Alexei L. Glebov; Paul O. Leisher, Editor(s)

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