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Schematic illustration of separate-contact, coupled photonic crystal heterostructures based on coupled-VCSEL arrays.
(a) Near-field and far-field patterns of a separate-contact PhCH incorporating two coupled islands separated by two lattice periods. (b) Scans across the near-field patterns shown in (a). (c) Average line scans of the lower right far-field lobes in (a). The corresponding injected currents are , for ; , for ; and , for .
(a) Superimposed spectrally resolved near fields of one row of the coupled PhCH islands of Fig. 2 corresponding to current injection in the left , right , and both photonic island(s). (b) Line scans across the spectra (along the direction of the white dashed arrows) in (a). The index notation and relates to the spatial positions corresponding to the left and right islands, respectively.
(a) Evolution of one of the single far-field lobe for two coupled islands separated by two lattice periods for and . (b) Average line scans of the patterns in (a).
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