Pockels effect in GaN/AlxGa1-xN superlattice with different quantum structures

P. Chen; S. P. Li; X. G. Tu; Y. H. Zuo; L. Zhao; S. W. Chen; J. C. Li; W. Lin; H. Y. Chen; D. Y. Liu; J. Y. Kang; Y. D. Yu; J. Z. Yu; Q. M. Wang

doi:10.1117/12.792582

11 March 2008 Pockels effect in GaN/Al_xGa_1-xN superlattice with different quantum structures

P. Chen, S. P. Li, X. G. Tu, Y. H. Zuo, L. Zhao, S. W. Chen, J. C. Li, W. Lin, H. Y. Chen, D. Y. Liu, J. Y. Kang, Y. D. Yu, J. Z. Yu, Q. M. Wang

Author Affiliations +

Proceedings Volume 6984, Sixth International Conference on Thin Film Physics and Applications; 69841G (2008) https://doi.org/10.1117/12.792582
Event: Sixth International Conference on Thin Film Physics and Applications, 2007, Shanghai, China

Abstract

The linear electro-optic (Pockels) effect of wurtzite gallium nitride (GaN) films and six-period GaN/Al_xGa_1-xN superlattices with different quantum structures were demonstrated by a polarization-maintaining fiber-optical Mach-Zehnder interferometer system with an incident light wavelength of 1.55μm. The samples were prepared on (0001) sapphire substrate by low-temperature metalorganic chemical vapor deposition (MOCVD). The measured coefficients of the GaN/Al_xGa_1-xN superlattices are much larger than those of bulk material. Taking advantage of the strong field localization due to resonances, GaN/Al_xGa_1-xN SL can be proposed to engineer the nonlinear responses.

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P. Chen, S. P. Li, X. G. Tu, Y. H. Zuo, L. Zhao, S. W. Chen, J. C. Li, W. Lin, H. Y. Chen, D. Y. Liu, J. Y. Kang, Y. D. Yu, J. Z. Yu, and Q. M. Wang "Pockels effect in GaN/Al_xGa_1-xN superlattice with different quantum structures", Proc. SPIE 6984, Sixth International Conference on Thin Film Physics and Applications, 69841G (11 March 2008); https://doi.org/10.1117/12.792582

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