Mode-dependent energy exchange between near- and far-field through silicon-supported single silver nanorods

Zhuo, Xiaolu; Li, Shasha; Li, Nannan; Cheng, Xizhe; Lai, Yunhe; Wang, Jianfang

doi:10.1039/d2nr01402e

Cited by 4 publications

(4 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Judging from the electric field patterns and the wavelength range, the CF features shown here mainly come from the longitudinal modes of the nanorods, instead of the transverse modes or the broadside modes created by nanorods and high-refractive-index substrates. 46,62 For nanoscale lengths, the modal structure is similar to that discussed earlier. In general, the longer the rod length, the more multipole modes it can support.…”

Section: Resultssupporting

confidence: 62%

“…All spectra are then shift-stacked on top of each other, showing only the portions above 10 –4 in relative CF. Judging from the electric field patterns and the wavelength range, the CF features shown here mainly come from the longitudinal modes of the nanorods, instead of the transverse modes or the broadside modes created by nanorods and high-refractive-index substrates. , …”

Section: Resultsmentioning

confidence: 87%

“…For example, from Figure c, we see that while the bare cylinder results show similar qualitative trends, the correct treatment of the substrate boundary is essential to reproduce the periodicity of the experimental wavelength dependence arising from the nodal structure of the fields. A different substrate effect has been explored in the literature, where broadside nanoantennas that consist of high-aspect-ratio nanorods supported by high-refractive-index substrates could produce intriguing broadside mode scattering behavior and facilitate near- and far-field energy exchange . We note that the focus of our study is the plasmonic effect of single nanorods on the RET process between nearby donor–acceptor pairs.…”

Section: Resultsmentioning

confidence: 99%

“…A different substrate effect has been explored in the literature, where broadside nanoantennas that consist of high-aspect-ratio nanorods supported by highrefractive-index substrates could produce intriguing broadside mode scattering behavior 46 and facilitate near-and far-field energy exchange. 62 We note that the focus of our study is the plasmonic effect of single nanorods on the RET process between nearby donor−acceptor pairs. The effect of broadside modes originating from the coupling between the nanorod and a high-refractive-index substrate, although warranting further investigation, is not considered here.…”

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

Tunability and Long-Range Enhancement of Resonance Energy Transfer Facilitated by Plasmonic Nanorods

Lamonda,

Coker,

Ding

2024

J. Phys. Chem. C

View full text Add to dashboard Cite

Resonance energy transfer (RET) between molecules or quantum dots is an important process in many energyrelated applications. Different environmental structures have been studied and demonstrated to be able to enhance the RET rates between a nearby donor−acceptor pair. In particular, cylindrical silver nanorods and nanowires have shown an extraordinary ability to transfer energy along their longitudinal axes over large distances. However, the detailed mechanism of such transfer and the effects on the molecular RET process are as yet elusive. In this study, we use the recently developed computational tool based on the plasmon-coupled RET method to systematically study the effects of nanorods with different dimensions on the RET rates. We find that highly frequency-dependent coupling factor (CF) spectra, whose amplitudes determine RET rates, can be obtained due to the localized surface plasmon polariton modes of the rods with nanoscale dimensions. Simple phenomenological models can be derived for the wavelengths of CF peaks in relation to the length and width of the nanorods, providing easy tunability for enhancing the RET rate in specific wavelength ranges. When coupled to longer rods with mesoscale lengths, exponential decay of the CF over long donor−acceptor distances with a small decay constant is observed, leading to the possibility of long-range RET processes. Furthermore, drumhead resonance modes emerge on the flat ends of the rod when the rod's diameter reaches 300 nm, resulting in extra enhancement to RET rate compared to certain thinner rods. These findings shed new light on the mechanism of plasmonic enhancement with silver nanorods and establish design principles for how to optimally utilize these structures to manipulate RET processes for various applications.

show abstract

Section: Resultssupporting

confidence: 62%

Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Tunability and Long-Range Enhancement of Resonance Energy Transfer Facilitated by Plasmonic Nanorods

Lamonda,

Coker,

Ding

2024

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

Mode‐dependent Far‐field Radiation of Circularly Polarized Light by a Single Plasmonic Nanohelix

Cui,

Chen,

et al. 2024

Advanced Optical Materials

View full text Add to dashboard Cite

Chiral plasmonic nanoantennas exhibit unique chiroptical properties in both the near‐field and far‐field, offering exciting opportunities for applications in chiroptical sensing, circularly polarized luminescence, and quantum communication. Recent advances in chiral plasmonics have facilitated the creation of nanoparticles with intrinsic chirality at the single‐particle level. However, the far‐field directionality of these chiral nanoantennas is not well understood. In this work, A numerical study is conducted on a single plasmonic nanoantenna that undergoes a size‐preserving compression, transitioning from a straight nanorod to left‐ or right‐handed helices with varying pitches. These nanostructures showcase distinct mode‐dependent chiroptical far‐field properties, encompassing positive or negative dissymmetry factors, 3D power radiation patterns, and angular distribution of circular polarization, under both plane‐wave and point‐source excitations. The findings provide new insights into angle‐resolved spectroscopies of intrinsically chiral plasmonic nanoparticles and the applications of chiral plasmonic nanoantennas for controlling circularly polarized light emission in nanophotonics.

show abstract

Construction of broom-like Ag@N,O-C sensing interface for electrochemical detection of circulating tumor DNA using entropy-driven DNA walker

Han

Feng

et al. 2023

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

Mode-dependent energy exchange between near- and far-field through silicon-supported single silver nanorods

Abstract: Optical antenna effects endow plasmonic nanoparticles with the capability to enhance and control various types of light–matter interaction. Most reported plasmonic systems can be regarded as single-channel nanoantennas, which rely...

Cited by 4 publications

References 54 publications

Tunability and Long-Range Enhancement of Resonance Energy Transfer Facilitated by Plasmonic Nanorods

Tunability and Long-Range Enhancement of Resonance Energy Transfer Facilitated by Plasmonic Nanorods

Mode‐dependent Far‐field Radiation of Circularly Polarized Light by a Single Plasmonic Nanohelix

Construction of broom-like Ag@N,O-C sensing interface for electrochemical detection of circulating tumor DNA using entropy-driven DNA walker

Contact Info

Product

Resources

About