Three-Dimensional Beam Propagation Modeling of Nanostructured Whispering-Gallery Microcavities
Using a scalar 3-D beam propagation technique in a cylindrical coordinate system, we demonstrate that a nanohole bored in a whispering-gallery microcavity sensor with an inserted 25-nm-radius polystyrene particle can dually enhance the detection signal (by a factor of <inline-formula> <tex-...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/7416142/ |
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| Summary: | Using a scalar 3-D beam propagation technique in a cylindrical coordinate system, we demonstrate that a nanohole bored in a whispering-gallery microcavity sensor with an inserted 25-nm-radius polystyrene particle can dually enhance the detection signal (by a factor of <inline-formula> <tex-math notation="LaTeX">$\sim$</tex-math></inline-formula>6) and maintain a quality factor of <inline-formula> <tex-math notation="LaTeX">$7.6 \times {10^{8}}$</tex-math></inline-formula> (after degradation by a factor as little as 3) at a wavelength of 633 nm. Detailed numerical characterization of the resonant light circulating in this nanostructured cavity is provided, including aspects of stability and convergence. |
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| ISSN: | 1943-0655 |