Transparent magnesium aluminate spinel (MgAl2O4) ceramic has excellent transmission from the UV to mid-wave IR. It is rugged with strength that is 5x that of glass. Spinel also has better IR transmission compared to sapphire and ALON. Because of its superior mechanical and optical properties, it is considered as a sensor window for numerous military platforms. At the Naval Research Laboratory (NRL), we have focused on process developments to facilitate wider acceptance of spinel for various applications. These developments include purification of spinel to reduce the absorption and scattering losses, as well as new processes to make conformal spinel windows and also to reduce manufacturing and finishing costs. In this presentation, we will provide an update on all the spinel activities at NRL
Shyam S. Bayya, Guillermo Villalobos, Woohong Kim, Michael Hunt, Benjamin Rock, Jasbinder S. Sanghera, Bryan Sadowski, and Ishwar Aggarwal, "Recent developments in spinel at NRL (Conference Presentation)," Proc. SPIE 10179, Window and Dome Technologies and Materials XV, 101790H (Presented at SPIE Defense + Security: April 11, 2017; Published: 7 June 2017); https://doi.org/10.1117/12.2262904.5458059479001.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the conference proceedings. They include the speaker's narration along with a video recording of the presentation slides and animations. Many conference presentations also include full-text papers. Search and browse our growing collection of more than 14,000 conference presentations, including many plenary and keynote presentations.
Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon