Simultaneous Switching at Multiple Wavelengths Using Plasmon Induced Transparency and Fano Resonance

Paul, Sudipta; Ray, Mina

doi:10.1109/lpt.2017.2682919

Cited by 22 publications

(9 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Herein, the proposed structure still has great sensitivity, about 600 nm/RIU, 700 nm/RIU, 800 nm/RIU, 1000 nm/RIU, 1000 nm/RIU, 1600 nm/RIU at FR, NFR3, NFR1, EIT, NEIT, and NFR2, respectively. As shown in figure 8(c), though these FOM lines are different in the maximal values, it is noteworthy that the maximum FOM can reach the order of 10 6 in the case of EIT, which is remarkably higher than the vast majority of proposed refractive index nanosensors [6], [18]- [21], [40]- [45], [53], [55], [63], [65]- [67].…”

Section: Potential Applications Of the Proposed Multiple Fano Andmentioning

confidence: 89%

High-Performance Nano-Sensing and Slow-Light Applications Based on Tunable Multiple Fano Resonances and EIT-Like Effects in Coupled Plasmonic Resonator System

Wang

Zhao

et al. 2020

IEEE Access

View full text Add to dashboard Cite

A basic plasmonic system, consisting of a stub metal-insulator-metal (MIM) waveguide coupled with a ring resonator, is presented to realize Fano resonance and electromagnetically induced transparency-like (EIT-like) effect, which are numerically calculated by the finite element method (FEM). Meanwhile, the formation mechanism of Fano resonance is analyzed according to numerical simulations. Besides, the coupled mode theory (CMT) and the standing wave theory are used for explaining the Fano and EIT-like resonances phenomenon. Based on this system, an inner ring cavity is connected to the ring resonator by a slot and another ring cavity is later introduced under the stub resonator in order to constitute a new coupled plasmonic resonator system, providing quadruple Fano resonances and double EIT-like responses finally. In addition, the Fano and EIT-like resonances can be independently tuned by adjusting the structural parameters, which makes the design of highly integrated photonic circuits more flexible. The main contribution of this paper is that the proposed structure has a relatively good sensitivity of 1600 nm/RIU and an ultra-high FOM value of 1.2×10 6 as a refractive index nanosensor. Moreover, it can serve as an alloptical switch with a high on/off extinction ratio of about 43 dB. Additionally, its maximum group delay time and group index are about 1.49 ps and 221, indicating that the proposed system has a pretty good slow light effect. Therefore, the proposed structures are believed to have significant applications in high-performance nanosensors, switches, slow light devices and nonlinear areas in highly integrated plasmonic devices. INDEX TERMS Multiple EIT-like effects, multiple Fano resonances, refractive index sensor, surface plasmon polaritons (SPPs), slow light, ultra-high FOM.

show abstract

Section: Potential Applications Of the Proposed Multiple Fano Andmentioning

confidence: 89%

High-Performance Nano-Sensing and Slow-Light Applications Based on Tunable Multiple Fano Resonances and EIT-Like Effects in Coupled Plasmonic Resonator System

Wang

Zhao

et al. 2020

IEEE Access

View full text Add to dashboard Cite

show abstract

“…Therefore, the sharp Fano resonances provide a platform for achieving the high‐performance and ultrasmall optical modulators and switches. In the past decades, various tuning methods, such as the mechanical, thermal, magnetic, electrical, and optical tuning schemes, were utilized to improve the performance of the Fano modulators. All of these modulation approaches have applications in active plasmonic devices .…”

Section: Plasmonic Modulations Based On Fano Resonancesmentioning

confidence: 99%

“…However, because of the weak nonlinear light–matter interactions in natural materials and the short propagation distances of nanoscale‐confined SPP modes, the achievement of the all‐optical modulation with a large modulation depth in a small metallic nanostructure is an enormous challenge. The Fano resonances with sharp asymmetric profiles and strong field enhancements are extremely sensitive to the variations of the refractive index, and thus they provide an effective solution to this problem . By placing a photorefractive polymer on the metallic hole arrays, the Fano resonance (linewidth of Δλ ≈ 80 nm and spectral contrast of C ≈ 0.93) around λ = 750 nm was tuned based on the photorefractive effect under the pump beam of λ = 387 nm, as shown in Figure a .…”

Section: Plasmonic Modulations Based On Fano Resonancesmentioning

confidence: 99%

“…It is noticed that the photorefractive effect and third‐order nonlinear Kerr effect can only bring a small index variation (|Δ n | ≤ 0.05) because of the weak light–matter interaction. This small index variation in the tuning process significantly limits the dynamic tuning ranges of the all‐optical plasmonic modulators.…”

Section: Plasmonic Modulations Based On Fano Resonancesmentioning

confidence: 99%

See 1 more Smart Citation

Plasmonic Sensing and Modulation Based on Fano Resonances

Chen

Gan

Wang

et al. 2018

Advanced Optical Materials

109

View full text Add to dashboard Cite

The rapid developments in nanotechnology and plasmonics allow the manipulation of light at nanometer scales, such as light propagation and resonances. Differing from the symmetric Lorentzian‐like profiles in the conventional resonances, Fano resonances, which originate from the interference of different resonant modes, exhibit obviously asymmetric spectral profiles. Based on lineshape engineering, the Fano resonances with sharp asymmetric profiles exhibit a small linewidth and a high spectral contrast by exploiting different mechanisms and designing various metallic nanostructures. Both of the above properties in the sharp Fano resonances have significant applications in nanoscale plasmonic sensors and modulators. This review summarizes the underlying mechanism of the Fano resonances in various metallic nanostructures. Then, practical applications of the Fano resonances in nanoscale plasmonic sensing and modulation are reviewed. At last, the development and challenges of plasmonic sensing and modulation based on Fano resonances are discussed.

show abstract

“…Plasmon-induced transparency (PIT) is the analogues of EIT, usually observed in metamaterial structures [27]− [29], and remains an attractive topic for research. PIT got widespread applications in optical storage devices [30], nano-sensing [31], filtering [32], optical switching [33], etc. PIT with narrow window remains useful for sensing and switching applications [34], [35].…”

Section: Introductionmentioning

confidence: 99%

Tunable and Multiple Plasmon-Induced Transparency in a Metasurface Comprised of Silver S-Shaped Resonator and Rectangular Strip

et al. 2020

View full text Add to dashboard Cite

The plasmon-induced transparency (PIT) in planar metasurface comprising of resonators having one S-shaped structure and a rectangular strip (both made of silver) was investigated. It was found that the S-shaped component of metasurface induces a single bright mode, whereas the rectangular strip manifests two bright modes with strong coupling of incidence electromagnetic waves. When both the metasurface components were placed in the proximity, the PIT-like phenomenon was observed. The effects of rotational angle of the metasurface as well as the angle of incidence on the transmission spectra (of the metasurface) were also investigated. Both the transverse electric (TE) and transverse magnetic (TM) waves were used to explore the PIT effect. It was noticed that the PIT window could be easily tuned by altering the horizontal distance between the resonator components (i.e., the S-shaped structure and rectangular strip). It is expected that the proposed metasurface structure would be prudent in switching, ultrafast sensing and optical applications.

show abstract

Simultaneous Switching at Multiple Wavelengths Using Plasmon Induced Transparency and Fano Resonance

Cited by 22 publications

References 25 publications

High-Performance Nano-Sensing and Slow-Light Applications Based on Tunable Multiple Fano Resonances and EIT-Like Effects in Coupled Plasmonic Resonator System

High-Performance Nano-Sensing and Slow-Light Applications Based on Tunable Multiple Fano Resonances and EIT-Like Effects in Coupled Plasmonic Resonator System

Plasmonic Sensing and Modulation Based on Fano Resonances

Tunable and Multiple Plasmon-Induced Transparency in a Metasurface Comprised of Silver S-Shaped Resonator and Rectangular Strip

Contact Info

Product

Resources

About