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Adjustable Propagation Length Enhancement of the Surface Plasmon Polariton Wave via Phase Sensitive Optical Parametric Amplification.


ABSTRACT: The adjustable propagation length enhancement of the surface plasmon polariton (SPP) mode under the effects of the initial relative phase (?0) between interacting waves in difference frequency generation (DFG) based optical parametric amplification (OPA) are numerically considered. The waveguide is a silver coated PPLN planar waveguide. Obtained results indicate ultra long propagation length for the SPP mode could be achieved via manipulation of ?0 in exact quasi phase matching (QPM) case up to 30?mm for initial pump intensity about 66?MW/cm for degenerate DFG (dDFG). For chirped QPM by mitigating the high depletion of the pump intensity, it is possible to enhance the SPP propagation length up to 43?mm for initial pump intensity about 135?MW/cm. In this case ?0 does not affect the SPP propagation length except around a narrow range of unsuitable phases. The unsuitable phase is [Formula: see text] for exact QPM but is pump dependent for chirped QPM case. Using this unsuitable phase is the key parameter to the SPP propagation length enhancement via controlling ?0. In this case with a high pump intensity, the pump and the SPP modes interact at longer distances which leads to the SPP propagation length enhancement.

SUBMITTER: Izadi MA 

PROVIDER: S-EPMC6195544 | biostudies-other | 2018 Oct

REPOSITORIES: biostudies-other

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Adjustable Propagation Length Enhancement of the Surface Plasmon Polariton Wave via Phase Sensitive Optical Parametric Amplification.

Izadi Mohammad Amin MA   Nouroozi Rahman R  

Scientific reports 20181019 1


The adjustable propagation length enhancement of the surface plasmon polariton (SPP) mode under the effects of the initial relative phase (ψ<sub>0</sub>) between interacting waves in difference frequency generation (DFG) based optical parametric amplification (OPA) are numerically considered. The waveguide is a silver coated PPLN planar waveguide. Obtained results indicate ultra long propagation length for the SPP mode could be achieved via manipulation of ψ<sub>0</sub> in exact quasi phase matc  ...[more]

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