Abstract
We report on the far-field emission characteristics of two-dimensional photonic crystal-based organic waveguide lasers. The photonic crystals possess square vein, triangular, and honeycomb symmetries. The two-dimensional gratings are fabricated by employing soft lithographic methods. The far-field pattern that we observe is a result of out-of-plane diffractive coupling of the laser emission generated in the plane of the waveguide. This emission pattern offers a convenient and powerful way to evaluate the nature of laser action in such resonators. In devices which possess defects/breaks in the periodicity of the two-dimensional grating, laser emission generated in-plane is scattered in the plane of the waveguide. This phenomenon is the photonic crystal analogue of Kikuchi scattering in electronic crystals.
Original language | English (US) |
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Pages (from-to) | 3502-3507 |
Number of pages | 6 |
Journal | Journal of Applied Physics |
Volume | 86 |
Issue number | 7 |
DOIs | |
State | Published - Oct 1 1999 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy