Abstract
An erratum is presented to correct the calculation of the resonator FWHM and sensor detection limit.
©2007 Optical Society of America
In our paper [1], the development of a high-sensitivity, low detection limit refractometric sensor has been proposed. The FWHM of the proposed sensor was estimated to be 10-7nm and a detection limit of 10-10 RIU was predicted.
We have recently discovered a mistake in the calculation of the resonator FWHM, the correct magnitude of which has been estimated to be 10-4nm. This affects the minimum detection limit, which as a result is estimated to be 10-7 RIU.
Therefore line 6 in the abstract should read “resolution as low as 10-7 are predicted”; on page 7893, at lines 2 and 3 “the FWHM is 4×10-4 nm and the detection limit is 10-6-10-7 RIU” and at line 4 of the Conclusion, “Detection limits of the order of 10-7 have also been predicted”.
Finally, in Table 1, the last row should be modified as follows:
CANMR | 700 | 970 | <4·10-4 | 10-7 | This work |
As a concluding remark, we would like to stress that the microfiber coil resonator still provides the lowest detection limit. Moreover, if the best measured propagation loss is used [2] in the evaluation of the FWHM, a FWHM of 10-5nm is obtained. Compared to other microresonator sensors, this novel device has potentially the largest Q-factor and the lowest detection limit.
References and links
1. F. Xu, P. Horak, and G. Brambilla, “Optical microfiber coil resonator refractometric sensor,” Opt. Express 15, 7888–7893 (2007). [CrossRef] [PubMed]
2. G. Brambilla, F. Xu, and X. Feng, “Fabrication of optical fibre nanowires and their optical and mechanical characterization,” Electron. Lett. 42, 517–518 (2006). [CrossRef]