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Enhanced Light Emission by Exciton-Surface Plasmon Coupling

Published online by Cambridge University Press:  01 February 2011

Koichi Okamoto
Affiliation:
k.okamoto@hy4.ecs.kyoto-u.ac.jp, Kyoto University, Electronic Science and Engineerin, Katsura Campus, Nishikyo-ku, kyoto, 615-8510, Japan, +81-75-383-2314, +81-75-383-2312
Axel Scherer
Affiliation:
etcher@caltech.edu, California Institute of Technology, Department of Physics, 1200 E. California Blvd., Pasadena, CA, 91125, United States
Yoichi kawakami
Affiliation:
kawakami@kuee.kyoto-u.ac.jp, Kyoto University, Department of Electronic Science and Engineering, Katsura Campus, Nishikyo-ku, Kyoto, 615-8510, Japan
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Abstract

Surface plasmon coupling technique was performed to enhanced green light emissions from InGaN/GaN quantum well. We found that photoluminescence intensities were increased by fabricated nano-grating structures on the gold layers and enhancement ratios depend on the grating periods. We also simulated the localized SP modes by 3D-finite difference time domain (FDTD) calculation. The experimental results were well correlated to the calculated results, and we found that the both exciton-SP coupling and light extraction process can be controlled by the nano-structures of the interfaces. This suggests that even more efficient emission should be obtainable by optimizing the nanostructure geometries.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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References

REFERENCES

1. Gontijo, I. Broditsky, M., Yablonvitch, E., Keller, S., Mishra, U. K., DenBaars, S. P., Phys. Rev. B 60. 11564 (1999).Google Scholar
2. Neogi, A., Lee, C.-W., Everit, H. O., Kuroda, T., Tackeuchi, A., Yablonvitch, E., Phys. Rev. B 66, 153305 (2002).Google Scholar
3. Okamoto, K., Niki, I., Shvartser, A., Narukawa, Y., Mukai, T., and Scherer, A., Nature Materials. 3, 601 (2004).Google Scholar
4. Okamoto, K., Niki, I., Scherer, A., Narukawa, Y., Mukai, T., Kawakami, Y., App. Phys. Lett. 87, 071102 (2005).Google Scholar
5. Okamoto, K., Vyawahare, S., and Scherer, A., J. Opt. Soc. Am, B, 23, 1674 (2006).Google Scholar
6. Neal, T. D., Okamoto, K., and Scherer, A., Optics Express, 13, 5522 (2005).Google Scholar
7. Neal, T. D., Okamoto, K., Scherer, A., Liu, M. S., Jen, A. K-Y, App. Phys. Lett. 89, Art. 221106 (2006).Google Scholar
8. Okamoto, K., Niki, I., Shvartser, A., Maltezos, G., Narukawa, Y., Mukai, T., Kawakami, Y., Scherer, A., Phys. Stat. Soli. (a), 204, 2103 (2007).Google Scholar
9.The computer simulations in this paper are performed by a FDTD-based program, Poynting for Optics, a product of Fujitsu, Japan.Google Scholar
10. Suna, G., Khurgin, J. B., Soref, R. A., App. Phys. Lett. 90, 111107 (2007).Google Scholar
11. Gonga, Y., Vučković, J., App. Phys. Lett. 90, 033113 (2007).Google Scholar
12. Wang, J.-Y., Yang, C. C., Kiang, Y.-W., Optics Express, 15, 9048 (2007).Google Scholar