An error was made in the calculation of the photonic crystal mode volume. Fixing this error increases our mode volumes by a factor of two and makes our claim of highest Q/V invalid.
© 2012 OSA
In our article , we state that the mode volume of the 1D photonic crystal nanobeam cavities is 0.27(λ/n)3. This value appears in the caption for Fig. 1, in the last paragraph of section 4 and in the conclusion. Recently, it was discovered that a factor of two error was made in the calculation of cavity mode volume. This error results in an increase in the mode volume of these cavities to 0.54(λ/n)3.
We make the claim in the last paragraph of the introduction, at the end of section 4 and in the conclusion that we have observed the highest Q/V ratio as of the date of publication. Using this new mode volume, and our reported highest Q of 75,000, our calculated Q/V ratio becomes 139,000. This value is no longer larger than the Q/V ratio of 173,000 reported by the group of De La Rue , making our claim invalid.
References and links
1. B. C. Richards, J. Hendrickson, J. D. Olitzky, R. Gibson, M. Gehl, K. Kieu, U. K. Khankhoje, A. Homyk, A. Scherer, J.-Y. Kim, Y.-H. Lee, G. Khitrova, and H. M. Gibbs, “Characterization of 1D photonic crystal nanobeam cavities using curved microfiber,” Opt. Express 18(20), 20558–20564 (2010). [CrossRef] [PubMed]
2. A. R. M. Zain, N. P. Johnson, M. Sorel, and R. M. De La Rue, “Ultra high quality factor one dimensional photonic crystal/photonic wire micro-cavities in silicon-on-insulator (SOI),” Opt. Express 16(16), 12084–12089 (2008). [CrossRef] [PubMed]