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Spectral properties and quasi-phase-matched second-harmonic generation in a new active medium: optical superlattice Nd:MgO:LiNbO3 |
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| Authors: | YQ Lu JJ Zheng YL Lu NB Ming |
| Institution: | (1) National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, P.R. China (Fax: +86-25/3300-535, E-mail: yqlu@nju.edu.cn), CN;(2) CCAST (World Laboratory), P.O. 8730, Beijing 100080, and National Laboratory of Solid State Microstructures, Nanjing 210093, P.R. China, CN |
| Abstract: | 3 crystal – was grown in our Laboratory. The absorption and fluorescence spectra were measured and show some differences from the results of common Nd:MgO:LiNbO3 with monodomain structure. Third-order quasi-phase-matched violet second-harmonic generation in the sample was demonstrated to characterize the quality of the crystal. The properties indicate that the periodically poled optical superlattice Nd:MgO:LiNbO3 has great potential for constructing a blue or green light source through self-frequency-doubling operation using the maximum nonlinear optical coefficient d33 of LiNbO3 and the high-gain π polarization at the same time. Received: 22 August 1997/Revised version: 10 January 1998 |
| Keywords: | PACS: 42 55 42 65 42 70 |
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