Stopping light using a transient Bragg grating

Weiss, Tal; Sivan, Yonatan

doi:10.1103/physreva.101.033828

Cited by 2 publications

(2 citation statements)

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“…It has been shown that dynamically varying a slow light resonance in this way with a pulse trapped inside the structure will result in the pulse bandwidth being compressed and the pulse being brought to a practical stand-still [10,11] which is analogous to the behavior observed in EIT [12]. This behavior has been studied in a general theoretical context [13,14] and has been applied to various specific devices such as a quasiphase-matched waveguide using backward frequency conversion [15], a p-i-n integrated photonic crystal nanocavity [16], a waveguide with moving index fronts [17] and in a grating coupled metal-dielectric-metal waveguide [18].…”

Section: Introductionmentioning

confidence: 83%

Slow and stopped light in dynamic Moiré gratings

2021

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We investigate a theoretical model for a dynamic Moiré grating which is capable of producing slow and stopped light with improved performance when compared with a static Moiré grating. A Moiré grating superimposes two grating periods which creates a narrow slow light resonance between two band gaps. A Moiré grating can be made dynamic by varying its coupling strength in time. By increasing the coupling strength the reduction in group velocity in the slow light resonance can be improved by many orders of magnitude while still maintaining the wide bandwidth of the initial, weak grating. We show that for a pulse propagating through the grating this is a consequence of altering the pulse spectrum and therefore the grating can also perform bandwidth modulation. Finally we present a possible realization of the system via an electro-optic grating by applying a quasi-static electric field to a poled χ (2) nonlinear medium.

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Section: Introductionmentioning

confidence: 83%

Slow and stopped light in dynamic Moiré gratings

2021

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“…It has been shown that dynamically varying a slow-light resonance in this way with a pulse trapped inside the structure will result in the pulse bandwidth being compressed and the pulse being brought to a practical stand-still [8,9] which is analogous to the behavior observed in EIT [10]. This behavior has been studied in a general theoretical context [11] and has been applied to various specific devices such as a p-i-n integrated photonic crystal nanocavity [12], a waveguide with moving index fronts [13] and in a grating coupled metal-dielectric-metal waveguide [14].…”

Section: Introductionmentioning

confidence: 88%