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Giant Kerr nonlinearity and low-power gigahertz solitons via plasmon-induced transparency.

Bai Z, Huang G, Liu L, Zhang S - Sci Rep (2015)

Bottom Line: We propose a method to enhance Kerr nonlinearity and realize low-power gigahertz solitons via plasmon-induced transparency (PIT) in a new type of metamaterial, which is constructed by an array of unit cell consisting of a cut-wire and a pair of varactor-loaded split-ring resonators.We further show that the system suggested here also possess a giant third-order nonlinear susceptibility and may be used to create solitons with extremely low generation power.Our study raises the possibility for obtaining strong nonlinear effect of gigahertz radiation at very low intensity based on room-temperature metamaterials.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China.

ABSTRACT
We propose a method to enhance Kerr nonlinearity and realize low-power gigahertz solitons via plasmon-induced transparency (PIT) in a new type of metamaterial, which is constructed by an array of unit cell consisting of a cut-wire and a pair of varactor-loaded split-ring resonators. We show that the PIT in such metamaterial can not only mimic the electromagnetically induced transparency in coherent three-level atomic systems, but also exhibit a crossover from PIT to Autler-Townes splitting. We further show that the system suggested here also possess a giant third-order nonlinear susceptibility and may be used to create solitons with extremely low generation power. Our study raises the possibility for obtaining strong nonlinear effect of gigahertz radiation at very low intensity based on room-temperature metamaterials.

No MeSH data available.


Propagation of the soliton and the interaction between two solitons.(a) The radiation intensity /E/U0/2 of the soliton as a function of t/τ0 and z/LD. (b) The collision between two solitons.
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f5: Propagation of the soliton and the interaction between two solitons.(a) The radiation intensity /E/U0/2 of the soliton as a function of t/τ0 and z/LD. (b) The collision between two solitons.

Mentions: The stability of the gigahertz soliton is tested by using numerical simulation. Figure 5(a) shows the result of the radiation intensity /E/U0/2 of the soliton as a function of t/τ0 and z/LD. The solution is obtained by numerically solving Eq. (12) with the complex coefficients taken into account, with the initial condition given by E(0, t)/U0 = sech(t/τ0). We see that the shape of the soliton undergoes no apparent deformation during propagation.


Giant Kerr nonlinearity and low-power gigahertz solitons via plasmon-induced transparency.

Bai Z, Huang G, Liu L, Zhang S - Sci Rep (2015)

Propagation of the soliton and the interaction between two solitons.(a) The radiation intensity /E/U0/2 of the soliton as a function of t/τ0 and z/LD. (b) The collision between two solitons.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4562254&req=5

f5: Propagation of the soliton and the interaction between two solitons.(a) The radiation intensity /E/U0/2 of the soliton as a function of t/τ0 and z/LD. (b) The collision between two solitons.
Mentions: The stability of the gigahertz soliton is tested by using numerical simulation. Figure 5(a) shows the result of the radiation intensity /E/U0/2 of the soliton as a function of t/τ0 and z/LD. The solution is obtained by numerically solving Eq. (12) with the complex coefficients taken into account, with the initial condition given by E(0, t)/U0 = sech(t/τ0). We see that the shape of the soliton undergoes no apparent deformation during propagation.

Bottom Line: We propose a method to enhance Kerr nonlinearity and realize low-power gigahertz solitons via plasmon-induced transparency (PIT) in a new type of metamaterial, which is constructed by an array of unit cell consisting of a cut-wire and a pair of varactor-loaded split-ring resonators.We further show that the system suggested here also possess a giant third-order nonlinear susceptibility and may be used to create solitons with extremely low generation power.Our study raises the possibility for obtaining strong nonlinear effect of gigahertz radiation at very low intensity based on room-temperature metamaterials.

View Article: PubMed Central - PubMed

Affiliation: State Key Laboratory of Precision Spectroscopy and Department of Physics, East China Normal University, Shanghai 200062, China.

ABSTRACT
We propose a method to enhance Kerr nonlinearity and realize low-power gigahertz solitons via plasmon-induced transparency (PIT) in a new type of metamaterial, which is constructed by an array of unit cell consisting of a cut-wire and a pair of varactor-loaded split-ring resonators. We show that the PIT in such metamaterial can not only mimic the electromagnetically induced transparency in coherent three-level atomic systems, but also exhibit a crossover from PIT to Autler-Townes splitting. We further show that the system suggested here also possess a giant third-order nonlinear susceptibility and may be used to create solitons with extremely low generation power. Our study raises the possibility for obtaining strong nonlinear effect of gigahertz radiation at very low intensity based on room-temperature metamaterials.

No MeSH data available.