Highly sensitive nanoparticle sensing based on a hybrid cavity in a freely suspended microfiber
Source abstract
Abstract
Abstract We report a hybrid cavity structure based on a suspended microfiber with a diameter of 1.7 μ m applied to nanoparticle sensing in water. The proposed hybrid cavity is composed of two symmetrical reflectors with a slotted Au layer in the middle. After being characterized by the finite-difference time-domain method, the obtained strong reflection and sufficiently wide band gap provide the potential to realize an ultrasmall mode volume, which can improve sensitivity and lower loss. In addition, an ultrahigh Q / V ratio of 8.2 × 10 6 ( λ /n) −3 and high resonance transmittance of T = 0.53 can be obtained through optimization analysis. After analyzing the trapping force and resonance shift caused by the change in local electric field, it is proven that our proposed cavity exhibits a high sensitivity and offers a convenient and stable method for particle sensing in water.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Advanced Fiber Optic Sensors · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Localized optical manipulation in optical ring resonators10.1364/OE.23.027650 ↗
2. Strongly confining bare core CdTe quantum dots in polymeric microdisk resonators10.1063/1.4862695 ↗
3. Silicon nitride microresonators for optical manipulation of microparticles and biosensing10.1117/12.906970 ↗
4. Emergent upconversion sustainable micro-optical trapping device10.1002/ppsc.201900077 ↗
5. Ultra-high Q/V hybrid cavity for strong light–matter interaction10.1063/1.4994056 ↗
6. Realization of high-Q/V photonic crystal cavities defined by an effective Aubry–André–Harper bichromatic potential10.1063/1.4979708 ↗
7. Highly sensitive MOEMS integrated photonic crystal cavity resonator for nano-mechanical sensing10.1016/j.optcom.2020.126150 ↗
8. Impact of fabrication and bioassay surface roughness on the performance of label-free resonant biosensors based on 1D photonic crystal microcavities10.1021/acssensors.0c01183 ↗
9. High quality factor photonic crystal nanobeam cavities10.1063/1.3107263 ↗
10. Microring resonator-based photonic system for terahertz signal generation10.1007/s11107-018-0811-7 ↗
11. Broadband microwave photonic phase shifter based on a feedback-coupled microring resonator with small radio frequency power variations10.1364/OL.41.004609 ↗
12. Highly sensitive refractive index sensor based on hybrid plasmonic waveguide microring resonator10.1080/17455030.2018.1506191 ↗
13. Photonic nanobeam cavities with nano-pockets for efficient integration of fluorescent nanoparticles10.1021/acs.nanolett.0c00466 ↗
14. Photonic crystal nanobeam/micro-ring hybrid-cavities for optical trapping10.1016/j.optcom.2019.124902 ↗
15. Ultra-low mode volume on-substrate silicon nanobeam cavity10.1364/OE.27.030692 ↗
16. Plasmon nano-optical tweezers10.1038/nphoton.2011.56 ↗
17. Nanomanipulation using silicon photonic crystal resonators10.1021/nl9029225 ↗
18. Optomechanics with one-dimensional gallium phosphide photonic crystal cavities10.1364/OPTICA.6.000577 ↗
19. Slotted photonic crystal nanobeam cavity with an ultrahigh quality factor-to-mode volume ratio10.1364/OE.21.032468 ↗
20. High-q photonic nanocavity in a two-dimensional photonic crystal10.1038/nature02063 ↗
21. Design of an optical trapping device based on an ultra-high Q/V resonant structure10.1109/JPHOT.2014.2356496 ↗
22. Optical constants of the noble metals10.1103/PhysRevB.6.4370 ↗
23. Anti-external interference sensor based on cascaded photonic crystal nanobeam cavities for simultaneous detection of refractive index and temperature10.1109/JLT.2019.2900395 ↗
24. Cavity-enhanced harmonic generation in silicon rich nitride photonic crystal microresonators10.1063/1.5066996 ↗
25. Optical trapping and two-photon excitation of colloidal quantum dots using bowtie apertures10.1021/acsphotonics.5b00575 ↗
26. A revolution in optical manipulation10.1038/nature01935 ↗
27. Squeezing photons into a point-like space10.1021/acs.nanolett.5b01204 ↗
28. Jackson · Classical Electrodynamics · 1999 · 67 · 84110.1119/1.19136 ↗
29. Scaling of optical forces in dielectric waveguides: rigorous connection between radiation pressure and dispersion10.1364/OL.36.000217 ↗
30. A universal law for plasmon resonance shift in biosensing10.1021/ph500355d ↗
31. Trapping particles using waveguide-coupled gold bowtie plasmonic tweezers10.1039/C4LC00731J ↗
32. Sensing of microparticles based on a broadband ultrasmall microcavity in a freely suspended microfiber10.1364/PRJ.5.000143 ↗