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All-optical switches on a silicon chip realized using photonic crystal nanocavities
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10.1063/1.2089185
/content/aip/journal/apl/87/15/10.1063/1.2089185
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/15/10.1063/1.2089185
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color) SEM images and linear transmission spectra of two samples employed for the experiments. Lattice constant is with a hole diameter of . (Sample A) A three point defect nanocavity with the center wavelength, spectral width, quality factor, and cavity lifetime at , , , and , respectively. The measured transmission spectrum is shown by the solid line along with a fitted Lorentzian function (dotted line). (Sample B) Four point defect nanocavity with resonant modes at (, , and ) and (, , and ). The diameters of - and -holes are and . The -holes are shifted toward the -holes direction.

Image of FIG. 2.
FIG. 2.

(Color) Nonlinear spectrum transmission of sample A. (a) Normalized transmission spectra by applying a laser pulse at various pulse energies. (b) Wavelength shift in respect of (big dots) and (small dots). The wavelength shift is defined by the centroid of the transmitted spectrum. The red filled circles show results for a long input pulse (spectral width ), where the blue squares show results for another experiment using a long input pulse .

Image of FIG. 3.
FIG. 3.

(Color) All optical switching demonstration performed using sample B. (a) Measured signal light transmission (solid line: and dotted line: ) when a control pulse is applied at . is the wavelength detuning of the signal light from the cavity resonance . is enlarged 10 times. (b) Calculated signal transmission with condition. (c) Measured as a function of control pulse energy. The signal detuning is . Each line is shifted . (d) Measured as a function of control pulse energy . Each line is shifted . (e) Schematic of cavity resonance shift and signal transmission. The two arrows represent the signals and . The solid black Lorentzian curve is the cavity resonance. The left image shows the initial state, and the right figure shows when the resonance is shifted.

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/content/aip/journal/apl/87/15/10.1063/1.2089185
2005-10-05
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: All-optical switches on a silicon chip realized using photonic crystal nanocavities
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/15/10.1063/1.2089185
10.1063/1.2089185
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