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Resonant scattering and second-harmonic spectroscopy of planar photonic crystal microcavities
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10.1063/1.2137898
/content/aip/journal/apl/87/22/10.1063/1.2137898
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/22/10.1063/1.2137898

Figures

Image of FIG. 1.
FIG. 1.

Schematic of a defect cavity, illustrating the mode orientation directions and , and the elliptically stretched holes.

Image of FIG. 2.
FIG. 2.

Spectra from a microcavity with nearly degenerate modes. The PL spectra shown in (a) are polarized at 0° (blue) and 90° (red dashed). The insets show the perfect structure - (left) and -dipole (right) intensities. (b) RS spectrum, which does not resolve the splitting.

Image of FIG. 3.
FIG. 3.

Spectra from a microcavity with widely spaced modes. (a) PL data, showing the modes are polarized at . (b) Resonant scattering data (x) and fit (solid). The laser lineshape and mode Lorentzian functions extracted from the fit are superimposed as dashed curves. (c) SHG data taken at an input polarization of 0°, and plotted at half the energy.

Image of FIG. 4.
FIG. 4.

SHG spectra with the input polarization at 45°, which isolates the lower mode, and , selecting the upper mode. The inset shows a spectrum taken away from the microcavity, showing the non-resonant SHG background. The energy scale has been divided by two.

Tables

Generic image for table
Table I.

Mode energies and linewidths extracted from fits to the PL, RS, and SHG spectra. Subscripts and refer to the low- and high-energy cavity modes, respectively, and refers to the sum-frequency generated signal, which appears only in the SHG data. The RS results were averaged from six spectra taken as the laser was tuned through the resonant spectral range. The SHG results were averaged from a series of spectra with the input polarization fixed at 0° and the output polarization varied from 0°–180°.

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/content/aip/journal/apl/87/22/10.1063/1.2137898
2005-11-23
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Resonant scattering and second-harmonic spectroscopy of planar photonic crystal microcavities
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/22/10.1063/1.2137898
10.1063/1.2137898
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