抄録
We demonstrate a method for making precise measurements of the diameter of a tapered optical fiber with a sub-wavelength diameter waist (an optical nanofiber). The essence of the method is to create a composite photonic crystal cavity by mounting a defect-mode grating on an optical nanofiber. The resultant cavity has a resonance wavelength that is sensitive to the nanofiber's diameter, allowing the diameter to be inferred from optical measurements. This method offers a precise, nondestructive, and in situ way to characterize the nanofiber diameter.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 4122-4125 |
| ページ数 | 4 |
| ジャーナル | Optics Letters |
| 巻 | 40 |
| 号 | 17 |
| DOI | |
| 出版ステータス | Published - 2015 |