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We present a coupled-wave analysis for square-lattice photonic crystal lasers with transverse electric polarization. A model consisting of eight plane waves coupled by Bragg diffraction is used to describe two-dimensional optical coupling. The resonant frequencies and threshold criteria for the modes of oscillation have been determined for the case of index periodicity with a lattice of circular holes...
We propose and investigate two-dimensional photonic-crystal lasers with a centered-rectangular lattice, which spans the lattice structure between the conventional square and triangular lattices.
We found that tighter focal spots with longer depths of focus are achieved by radially polarized annular beams with controlled inner and outer radii, which could lead to high-tolerance, super-resolution applications in compact optical systems.
Advances in high-efficiency, large-area, surface-emitting photonic-crystal lasers have been developed to achieve peak emission powers of 35 W with a slope efficiency of 0.7 W/A for a total device area of ~0.4 mm2.
We report on a record CW surface-emitting output-power operation of 2D photonic-crystal lasers at RT. We also propose new cavity design for further increase of output power.
Direct generation of a radially polarized doughnut beam from a single-chip semiconductor laser is demonstrated for the first time by using a two-dimensional photonic crystal, which leads to various super-resolution applications in compact optical systems.
In this paper, we demonstrate a high-Q cavity is possible to realize by using three-dimensional photonic crystal with a planar defect, by which we observed enhanced THz radiation from a photomixer antenna.
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