Double Fano resonance in a plasmonic double grating structure

Dana, Brenda; Bahabad, Alon

doi:10.1364/oe.24.022334

Cited by 10 publications

(10 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We next present our results on double Fano-like resonance lineshapes away from the line center, which can be tuned by introduction of mechanical driving fields and their phases. Such features have been widely studied in a different context in plasmonic structures [55,56]. Very recently, these double Fano resonance lineshapes have been studied also in cavity optomechanical systems [34,38,57].…”

Section: Resultsmentioning

confidence: 99%

Coherent control of Fano resonances in a macroscopic four-mirror cavity

et al. 2020

View full text Add to dashboard Cite

We demonstrate coherent control of optomechanically induced transparency and Fano resonances in a four mirror macroscopic optomechanical cavity, with two movable mirrors, each driven by an external mechanical pump. The variable control of the amplitude and phase of the coherent mechanical pumps provides a means of tuning the shape and nature of the Fano profiles. Further, our scheme shows the occurrence of tunable optomechanical features, even at very low mechanical driving field amplitudes, in macroscopic optomechanical cavities.

show abstract

Section: Resultsmentioning

confidence: 99%

Coherent control of Fano resonances in a macroscopic four-mirror cavity

et al. 2020

View full text Add to dashboard Cite

show abstract

“…[ 7–9 ] In the specific case, metasurfaces can support Fano–Feshbach resonances (FFRs) generating line‐shapes identical to those usually associated to electromagnetically induced transparency (EIT). [ 10–14 ]…”

Section: Introductionmentioning

confidence: 99%

“…[ 7 ] The latter can be constituted by optical nano‐cavities (ONC) exhibiting epsilon near‐zero (ε NZ ) behavior with giant phase shift (δ). [ 12,13,19,20 ] The ε NZ system guarantees the existence of two distinct surface plasmon polariton (SPP) modes (at the top or at the bottom of the metal–insulator interfaces [ 21 ] ), with different k ‐vectors at the resonant wavelengths, that can merge into a coupled state also known as gap surface plasmon (GSP) which has its own resonant wavelength (

{\lambda _{{\varepsilon _{{\rm{NZ}}}}}}{\rm{ - ONC}}

[ 22 ] ). If the typical periodicity of the unit metasurface element P ( Figure a) is such that the related lattice resonance is nearly close to the ε NZ ‐ONC one, the line‐shape can show a narrow feature, which is a consequence of the losses in the metal layers.…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9] In the specific case, metasurfaces can support Fano-Feshbach resonances (FFRs) generating line-shapes identical to those usually associated to electromagnetically induced transparency (EIT). [10][11][12][13][14] FFRs occur as interference between two scattering waves, one related to the bulk interaction (continuum states) and one due to the excitation of a discrete state corresponding to the resonant process. FFRs are manifested in the absorption cross section, σ(ℏω), described by the Fano formula1) Metamaterials-based sensors are of primary interest in physics, materials science, medicine, and biophysics thanks to their ability to detect very tiny amount of molecules spread into a medium.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Engineering Fano‐Resonant Hybrid Metastructures with Ultra‐High Sensing Performances

Lio

Ferraro

Kowerdziej

et al. 2023

Advanced Optical Materials

View full text Add to dashboard Cite

Metamaterials‐based sensors are of primary interest in physics, materials science, medicine, and biophysics thanks to their ability to detect very tiny amount of molecules spread into a medium. Here, a metastructure utilizing the epsilon near zero (εNZ) and Fano–Rabi physics is engineered to design a system with ultra‐high sensitivity. So far, a dedicated study of such systems has been missing. In this work, the authors report the results of their efforts to fill the gap by considering a metasurface, designed as a periodical array of rings with a cross in their center, placed on top of a silver (Ag) and zinc oxide (ZnO) epsilon near‐zero optical nanocavity (εNZ‐ONC) metamaterial. The accurate selection of the metasurface parameters allows the design of a sensor exhibiting an extremely high sensitivity of about 16 000 and 21 000 nm RIU−1 depending on incoming polarization. This work paves the way for the development of novel groundbreaking devices for biomedical and environmental application based on plasmonic and photonic design principles.

show abstract

“…Double Fano-like and Ramsey-Fano-like resonances with photonic molecules are demonstrated wherein the steep dispersions reveal better sensing performance [7]. A gratings-based plasmonic and an opto-mechanics based system, respectively, supported by nearly-degenerate double resonance [8] and multiple Fanolike resonance, together with a waveguide [9], have been shown to be useful in sensing and light slowing devices [10].…”

Section: Introductionmentioning

confidence: 99%

Atomic dephasing and coherence controlled tuning of the triple color scattering light using Autler–Townes triplet emission spectroscopy

Tiaz¹,

Ahmad²,

Ghafoor³

2018

Laser Phys.

View full text Add to dashboard Cite

This study shows atomic dephasing and coherence controlled tuning of a triple color scattering light from a four-level atomic system into the ones of single and double color when the system is cyclically coupled with one microwave field and two optical fields. The scattering light with the symmetric double resonance in the latter case tunes into two distinct features of the asymmetric Fano-like resonance using relative phase of the coupling fields and vice versa. The asymmetric resonance, in each case, agrees excellently with the original formulation of Fano (1961 Phys. Rev. 124 1866. The coherence tuning of the resonances, caused by the constructive interference effect in the spectrum, is analyzed analytically. Distinct in the technique, we further show atomic dephasing-induced tuning of the symmetric double and asymmetric single Fano-like resonance into a Lorentzian like statistical behavior. Upon adjusting the relative amplitude of the coupling fields in favor of the resonance tuning, the triple color scattered light is controlled from a sharpened central single and broadened sides double line through central broadened single and sides sharpened double line.

show abstract

Double Fano resonance in a plasmonic double grating structure

Cited by 10 publications

References 32 publications

Coherent control of Fano resonances in a macroscopic four-mirror cavity

Coherent control of Fano resonances in a macroscopic four-mirror cavity

Engineering Fano‐Resonant Hybrid Metastructures with Ultra‐High Sensing Performances

Atomic dephasing and coherence controlled tuning of the triple color scattering light using Autler–Townes triplet emission spectroscopy

Contact Info

Product

Resources

About