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Ultrafast rerouting of light via slow modes in a nanophotonic directional coupler
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10.1063/1.3153989
/content/aip/journal/apl/94/24/10.1063/1.3153989
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/24/10.1063/1.3153989
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the ultrafast rerouter. A probing light pulse enters a photonic-crystal based DC at input port IN1 and is coupled out at output port OUT1. Illumination of the device by a pump pulse reroutes subsequent probe pulses to output port OUT2. (b) Dispersion relation of the symmetric and antisymmetric Bloch supermode of the two side-coupled waveguides. (c) Transmittance spectrum of the DC at 20 ps before arrival of the pump pulse. The shaded area indicates the spectral range of the probe pulse used in the switching experiments. (d) Illustration of the rerouting process. Probe light which leaves the DC before excitation by the pump pulse exits at OUT1, and probe light arriving at the DC after excitation exits at OUT2.

Image of FIG. 2.
FIG. 2.

Experimental data demonstrating the ultrafast rerouting of light for an absorbed pump energy of about 6 pJ. (a) Spectra of the probe pulses arriving at output port OUT1 as a function of the pump-probe delay . (b) Same as (a) for output port OUT2. (c) Measured total probe power arriving at OUT1 and OUT2 as a function of (symbols). Thick solid lines are calculations based on Eq. (1).

Image of FIG. 3.
FIG. 3.

Spectral transmittance from IN1 to OUT1 as a function of the absorbed pump-pulse energy at (a) and (b) . Note the different ordinate scalings.

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/content/aip/journal/apl/94/24/10.1063/1.3153989
2009-06-19
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ultrafast rerouting of light via slow modes in a nanophotonic directional coupler
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/24/10.1063/1.3153989
10.1063/1.3153989
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