Differential ultrafast all-optical switching of the resonances of a micropillar cavity

Henri Thyrrestrup Nielsen; E. Yuce; Georgios Ctistis; Julien Claudon; Willem L. Vos; Jean-Michel Gérard

doi:10.1063/1.4896160

Differential ultrafast all-optical switching of the resonances of a micropillar cavity

Henri Thyrrestrup Nielsen, E. Yuce, Georgios Ctistis, Julien Claudon, Willem L. Vos, Jean-Michel Gérard

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Abstract

We perform frequency- and time-resolved all-optical switching of a GaAs-AlAs micropillar cavity using an ultrafast pump-probe setup. The switching is achieved by two-photon excitation of free carriers. We track the cavity resonances in time with a high frequency resolution. The pillar modes exhibit simultaneous frequency shifts, albeit with markedly different maximum switching amplitudes and relaxation dynamics. These differences stem from the non-uniformity of the free carrier density in the micropillar, and are well understood by taking into account the spatial distribution of injected free carriers, their spatial diffusion and surface recombination at micropillar sidewalls

Original language	English
Pages (from-to)	111115-1-111115-4
Number of pages	4
Journal	Applied physics letters
Volume	105
DOIs	https://doi.org/10.1063/1.4896160
Publication status	Published - 2014

Keywords

METIS-305340
IR-94912

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10.1063/1.4896160

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title = "Differential ultrafast all-optical switching of the resonances of a micropillar cavity",

abstract = "We perform frequency- and time-resolved all-optical switching of a GaAs-AlAs micropillar cavity using an ultrafast pump-probe setup. The switching is achieved by two-photon excitation of free carriers. We track the cavity resonances in time with a high frequency resolution. The pillar modes exhibit simultaneous frequency shifts, albeit with markedly different maximum switching amplitudes and relaxation dynamics. These differences stem from the non-uniformity of the free carrier density in the micropillar, and are well understood by taking into account the spatial distribution of injected free carriers, their spatial diffusion and surface recombination at micropillar sidewalls",

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author = "{Thyrrestrup Nielsen}, Henri and E. Yuce and Georgios Ctistis and Julien Claudon and Vos, {Willem L.} and Jean-Michel G{\'e}rard",

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language = "English",

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pages = "111115--1--111115--4",

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T1 - Differential ultrafast all-optical switching of the resonances of a micropillar cavity

AU - Thyrrestrup Nielsen, Henri

AU - Yuce, E.

AU - Ctistis, Georgios

AU - Claudon, Julien

AU - Vos, Willem L.

AU - Gérard, Jean-Michel

PY - 2014

Y1 - 2014

N2 - We perform frequency- and time-resolved all-optical switching of a GaAs-AlAs micropillar cavity using an ultrafast pump-probe setup. The switching is achieved by two-photon excitation of free carriers. We track the cavity resonances in time with a high frequency resolution. The pillar modes exhibit simultaneous frequency shifts, albeit with markedly different maximum switching amplitudes and relaxation dynamics. These differences stem from the non-uniformity of the free carrier density in the micropillar, and are well understood by taking into account the spatial distribution of injected free carriers, their spatial diffusion and surface recombination at micropillar sidewalls

AB - We perform frequency- and time-resolved all-optical switching of a GaAs-AlAs micropillar cavity using an ultrafast pump-probe setup. The switching is achieved by two-photon excitation of free carriers. We track the cavity resonances in time with a high frequency resolution. The pillar modes exhibit simultaneous frequency shifts, albeit with markedly different maximum switching amplitudes and relaxation dynamics. These differences stem from the non-uniformity of the free carrier density in the micropillar, and are well understood by taking into account the spatial distribution of injected free carriers, their spatial diffusion and surface recombination at micropillar sidewalls

KW - METIS-305340

KW - IR-94912

U2 - 10.1063/1.4896160

DO - 10.1063/1.4896160

M3 - Article

SN - 0003-6951

VL - 105

SP - 111115-1-111115-4

JO - Applied physics letters

JF - Applied physics letters

ER -

Differential ultrafast all-optical switching of the resonances of a micropillar cavity

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Keywords

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