Simulation study on light color conversion enhancement through surface plasmon coupling

Chang, Wen‐Chun; Kuo, Yao‐Haur; Kiang, Yean‐Woei; Yang, C. C.

doi:10.1364/oe.27.00a629

Cited by 20 publications

(16 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, when a photon down-converted light is used to mix with the fundamental photon for white-light generation and the white light is modulated for a communication application, the MB is expected to be reduced. It has been demonstrated that SP coupling can be used for enhancing the photon down-conversion efficiency [ 57 , 58 , 59 , 60 , 61 ]. Basically, SP coupling not only can enhance the emission efficiency of a light emitter but also can increase the absorption efficiency of a light absorber.…”

Section: Surface Plasmon Coupling For Enhancing Modulation Responsementioning

confidence: 99%

Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling

Yang

Chen

et al. 2022

Molecules

Self Cite

View full text Add to dashboard Cite

In this paper, we first elaborate on the effects of surface plasmon (SP) coupling on the modulation responses of the emission of a light-emitting diode (LED) and its down-converted lights through colloidal quantum dots (QDs). The results of our past efforts for this subject are briefly discussed. The discussions lay the foundation for the presentation of the new experimental data of such down-converted lights in this paper. In particular, the enhancement of the modulation bandwidth (MB) of a QD-based converted light through SP coupling is demonstrated. By linking green-emitting QDs (GQDs) and/or red-emitting QDs (RQDs) with synthesized Ag nano-plates via surface modifications and placing them on a blue-emitting LED, the MBs of the converted green and red emissions are significantly increased through the induced SP coupling of the Ag nano-plates. When both GQD and RQD exist and are closely spaced in a sample, the energy transfer processes of emission-reabsorption and Förster resonance energy transfer from GQD into RQD occur, leading to the increase (decrease) in the MB of green (red) light. With SP coupling, the MB of a mixed light is significantly enhanced.

show abstract

Section: Surface Plasmon Coupling For Enhancing Modulation Responsementioning

confidence: 99%

Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling

Yang

Chen

et al. 2022

Molecules

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the simulation model, the radiators are often approximated as simple dipoles. The effects of the size, shape, arrangement of the metallic NPs and oscillating direction, location, amplitude, multiple radiators of dipoles on the coupling of SP, and radiators are simulated and are able to explain the experimental results well [13,15,[27][28][29][30]. However, the energy transferring is not very clear for the localized SP (LSP) coupling to the multiple-dipole system, where the radiators show obviously different [15], or the collective resonance of the dipoles is significant [23,28].…”

Section: Introductionmentioning

confidence: 96%

“…Low efficiency devices emitting green, ultraviolet light, or with efficiency droop under high injection level will be remedied by SP techniques [11][12][13][14]. The color conversion enhancement for quantum dots or fluorescent molecules on micro light emitting diodes (LEDs) are promptly required for SP coupling by resonant absorption and emission enhancement [15,16]. The modulation bandwidth of LEDs will be significantly increased to tens of GHz with the SER enhancement [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…The best practical results are only two-times enhancement for electroluminescence (EL) intensities [26] and modulation bandwidth [17] using the SP coupling to the InGaN QWs. Finite element method (FEM) numerical simulations are widely used to study on the coupling of SP and radiators [13,15,25,[27][28][29][30]. In the simulation model, the radiators are often approximated as simple dipoles.…”

Section: Introductionmentioning

confidence: 99%

“…However, in many situations the oscillating amplitudes of dipoles are similar to each other. The linear approximation may cause a large error, for example, to a quantum dot (QD)-metallic NP-QW system [15,16]. To study on the energy transferring in such a three-body system, a perturbation method is proposed by adding a small power value, δP and its one-order asymptotic expansion.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Study on Electron-Induced Surface Plasmon Coupling with Quantum Well Using a Perturbation Method

et al. 2020

View full text Add to dashboard Cite

Ag nanoparticles (NPs) are filled in a photonic crystal (PhC) hole array on green light emitting diodes (LEDs). The localized surface plasmon (LSP)–quantum well (QW) coupling effect is studied by measuring the cathodoluminescence (CL) spectra impinging at the specific spots on the Ag NPs. Twenty-six percent and fifty-two percent enhancements of the CL intensities are obtained at the center and edge of the Ag NP, respectively, compared to the result that the electron-beam (e-beam) excites the QW directly. To illustrate the coupling process of the three-body system of e-beam–LSP–QW, a perturbation theory combining a three-dimensional (3D) finite difference time domain (FDTD) simulation is put forward. The effects of the polarization orientation of the dipole and the field symmetry of the LSP on the LSP–QW coupling are also discussed.

show abstract

Theoretical/Numerical Studies of the Nanoscale-Cavity Effects on Dipole Emission, Förster Resonance Energy Transfer, and Surface Plasmon Coupling

Kuo

Yang

2023

Plasmonics

Self Cite

View full text Add to dashboard Cite

The electric eld and radiated power of a radiating dipole located inside a spherical nano-cavity are formulated to show that the nano-cavity structure or nanoscale-cavity effect can enhance the near-eld intensity inside the cavity and the far-eld radiated power of the dipole. Such enhancements are caused by two contributing factors, including the classical electromagnetic scattering as formulated and the Purcell effect, which is implemented through a numerical feedback process by assuming a two-level system for the radiating dipole. The enhancement of near-eld intensity results in the e ciency increase of Förster resonance energy transfer when both energy donor and acceptor are located inside the nanocavity. By combining the enhancements of the eld intensity of the donor and the radiated power of the acceptor, the color conversion e ciency can be increased through the nanoscale-cavity effect. We also numerically demonstrate that the nanoscale-cavity effect can enhance surface plasmon coupling for increasing the radiated power of a dipole located nearby an Ag nanoparticle inside a nano-cavity.

show abstract

Simulation study on light color conversion enhancement through surface plasmon coupling

Cited by 20 publications

References 35 publications

Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling

Enhancement of the Modulation Response of Quantum-Dot-Based Down-Converted Light through Surface Plasmon Coupling

Study on Electron-Induced Surface Plasmon Coupling with Quantum Well Using a Perturbation Method

Theoretical/Numerical Studies of the Nanoscale-Cavity Effects on Dipole Emission, Förster Resonance Energy Transfer, and Surface Plasmon Coupling

Contact Info

Product

Resources

About