Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiber
We build a 3D printing spiral conical tapered gold tip directly on the end face of an optical fiber as an efficient fluorescence enhancement device via the two-photon polymerization direct laser writing technology and magnetron sputtering technique. At an optimized geometry achieved via three-dimens...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2022-04-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0086128 |
| _version_ | 1811247424565411840 |
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| author | Li Long Qiurong Deng Rongtao Huang Zhi-Yuan Li |
| author_facet | Li Long Qiurong Deng Rongtao Huang Zhi-Yuan Li |
| author_sort | Li Long |
| collection | DOAJ |
| description | We build a 3D printing spiral conical tapered gold tip directly on the end face of an optical fiber as an efficient fluorescence enhancement device via the two-photon polymerization direct laser writing technology and magnetron sputtering technique. At an optimized geometry achieved via three-dimensional finite-difference time-domain numerical simulations, the gold tip allows the incident light coming from the optical fiber to efficiently excite the surface-plasmon polariton at the outer surface and trigger bright fluorescence of Rodamine dye molecules. The experimental results show that when the incident green laser light at 532 nm has an intensity of 0.5 µW, the fluorescence enhancement factor by the spiral tapered gold tip bound to fiber is about 38 times greater than the reference sample of the flat-cleaved gold film coated fiber. This 3D nanostructured gold-tip bound optical fiber may provide a promising way to improve detection sensitivity in fluorescence-based sensing platforms. |
| first_indexed | 2024-04-12T15:08:30Z |
| format | Article |
| id | doaj.art-5404f9edac504b898e53ea6786ac9815 |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-04-12T15:08:30Z |
| publishDate | 2022-04-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-5404f9edac504b898e53ea6786ac98152022-12-22T03:27:50ZengAIP Publishing LLCAPL Photonics2378-09672022-04-0174046107046107-510.1063/5.0086128Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiberLi Long0Qiurong Deng1Rongtao Huang2Zhi-Yuan Li3School of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, ChinaSchool of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, ChinaSchool of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, ChinaSchool of Physics and Optoelectronics, South China University of Technology, Guangzhou 510641, ChinaWe build a 3D printing spiral conical tapered gold tip directly on the end face of an optical fiber as an efficient fluorescence enhancement device via the two-photon polymerization direct laser writing technology and magnetron sputtering technique. At an optimized geometry achieved via three-dimensional finite-difference time-domain numerical simulations, the gold tip allows the incident light coming from the optical fiber to efficiently excite the surface-plasmon polariton at the outer surface and trigger bright fluorescence of Rodamine dye molecules. The experimental results show that when the incident green laser light at 532 nm has an intensity of 0.5 µW, the fluorescence enhancement factor by the spiral tapered gold tip bound to fiber is about 38 times greater than the reference sample of the flat-cleaved gold film coated fiber. This 3D nanostructured gold-tip bound optical fiber may provide a promising way to improve detection sensitivity in fluorescence-based sensing platforms.http://dx.doi.org/10.1063/5.0086128 |
| spellingShingle | Li Long Qiurong Deng Rongtao Huang Zhi-Yuan Li Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiber APL Photonics |
| title | Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiber |
| title_full | Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiber |
| title_fullStr | Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiber |
| title_full_unstemmed | Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiber |
| title_short | Plasmonic enhanced fluorescence via 3D printing spiral conical tapered gold tip bound to optical fiber |
| title_sort | plasmonic enhanced fluorescence via 3d printing spiral conical tapered gold tip bound to optical fiber |
| url | http://dx.doi.org/10.1063/5.0086128 |
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