All-solid-state Nd:YAG ceramic fourth-harmonic ultraviolet laser at 266 nm. Issue 10 (December 2015)

• Record Type: Journal Article
• Authors: Liu, Wenbin; Mi, Zhongliang; Zhao, Xuejun; Li, Jiang; Liu, Binglong; Liu, Jing; Pan, Yubai
• Is Part Of: Ceramics international. Volume 41:Issue 10(2015)Part B
• Page Start: 15250
• Page End: 15254
• Publication Date: 2015-12
• Subjects: Nd:YAG ceramic -- Optical quality -- 226 nm -- Laser output; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2015.07.203
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: Transparent Nd:YAG ceramic was fabricated by a solid-state reaction method using a mixture of commercial α-Al2 O3, Y2 O3 and Nd2 O3 powders. The sample with an average grain size of 20 μm has a fully dense microstructure. The transmittances of the ceramic sample are 82.1% and 84.3% at 400 nm and 1064 nm, respectively, which are very close to the theoretical values of Nd:YAG single crystal with good quality. 266 nm ultraviolet-beam generation by fourth-harmonic generation of an all-solid-state Nd:YAG ceramic laser is demonstrated. When the pump power at 808 nm is 20 W, the average output power at 266 nm is 0.32 W. The optical-to-optical conversion efficiency from 808 nm to 266 nm is 1.6%. This is the first report on laser output at 266 nm for Nd:YAG ceramics to date.