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Electro-optically tunable photonic crystals
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View: Figures


Image of FIG. 1.
FIG. 1.

Left: Scanning electron micrograph image of a 7̱3̱7 PC line defect resonator without cladding layer. The resonator is excited by the fundamental slab waveguide mode indicated by black arrow left. Right: Transmission of a 7̱4̱7 PC line defect resonator in TM polarization (linked solid black dots). The experimental data are fitted by a Lorentzian shape function (solid curve).

Image of FIG. 2.
FIG. 2.

Modulation amplitude as a function of modulation voltage for PC line defect resonators (circles: Poled 7̱4̱7, and squares: unpoled 7̱3̱7, ). Lines represent linear and square fits. Left: Modulation response at the fundamental frequency . The slope corresponds to an electro-optic coefficient of . No response in the unpoled PC. Right: Modulation response at first harmonic frequency . A stronger Kerr response is seen in the poled sample as compared to the unpoled resonator sample .

Image of FIG. 3.
FIG. 3.

Modulation amplitude at the fundamental (circles, ) and first harmonic (squares, ) frequency for low modulation voltages observed for a poled sample. Modulation sensitivity below is observed. No detectable Kerr response at such low modulation fields.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electro-optically tunable photonic crystals