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Proceedings Paper

Luminescence properties of Nd3+-doped LiNbO3 and LiTaO3 sol-gel powders
Author(s): Shi De Cheng; Chan Hin Kam; Yee Loy Lam; Kantisara Pita; Srinivasa Buddhudu
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Paper Abstract

This paper reports the synthesis and a detailed analysis of the luminescence properties of Nd3+ doped LiNbO3 and LiTaO3 powders prepared by sol-gel process. The two ferroelectric hosts are potential candidates for various electronic and photonics applications. Near IR emission transitions of Nd3+ at 890 nm, 1060 nm and 1340 nm have been measured under the excitation of an Ar+ laser and it has been found that the 2mol percent Nd3+ has an intense emission compared with the other contents. An up-conversion violet color emission has also been observed with a 583 nm excitation, which is a hypersensitive transition of Nd3+ having a strong absorption at the yellow wavelength. Apart form a bright violet up-conversion emission, three other emissions at 342 nm and 464 nm have also been measured. The violet up- conversion emissions have been explained using an energy level diagram. The structural details and particle sizes of Nd3+ doped LiNbO3 and LiTaO3 powders have been studied form the patterns of XRD and SEM images.

Paper Details

Date Published: 24 October 2000
PDF: 7 pages
Proc. SPIE 4227, Advanced Microelectronic Processing Techniques, (24 October 2000); doi: 10.1117/12.405369
Show Author Affiliations
Shi De Cheng, National Univ. of Singapore (Singapore)
Chan Hin Kam, Nanyang Technological Univ. (Singapore)
Yee Loy Lam, Nanyang Technological Univ. (Singapore)
Kantisara Pita, Nanyang Technological Univ. (Singapore)
Srinivasa Buddhudu, Nanyang Technological Univ. (Singapore)

Published in SPIE Proceedings Vol. 4227:
Advanced Microelectronic Processing Techniques
H. Barry Harrison; Andrew Thye Shen Wee; Subhash Gupta, Editor(s)

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