Enhancing intensity of emitted light from a ring by incorporating a circular groove

C. K. Chang, D. Z. Lin, You-Chia Chang, M. W. Lin, J. T. Yeh, J. M. Liu, C. S. Yeh, C. K. Lee*

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We fabricated a ring containing a single circular groove (RCG) on silver film and which was supported on a glass substrate. We found that by changing the mean radius of the circular groove, the light intensity emitted from the RCG can be modulated by using the scattering light from the circular groove. In addition, we also fabricated circular grooves with the same depth but of different widths so that we could examine the scattering light behavior of the grooves. Herein, we propose a theoretical model which takes into account the amplitude modulation of the cylindrical waves. Our results showed that our proposed model agreed well with the experimental results.

Original languageEnglish
Pages (from-to)15029-15034
Number of pages6
JournalOptics Express
Volume15
Issue number23
DOIs
StatePublished - 12 Nov 2007

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    Chang, C. K., Lin, D. Z., Chang, Y-C., Lin, M. W., Yeh, J. T., Liu, J. M., Yeh, C. S., & Lee, C. K. (2007). Enhancing intensity of emitted light from a ring by incorporating a circular groove. Optics Express, 15(23), 15029-15034. https://doi.org/10.1364/OE.15.015029