Abstract
Thanks to the development of nano-fabrication technology, the research of photonic crystals progress from longer to shorter wavelength(ex. Microwave to U.V. light).Therefore, it is extensively discussed and utilized in optic communication, L.E.D lighting and laser …etc. The main topic in this thesis is utilizing band edge photonic crystal lasers to figure out the emission characteristic of lattice structures and organic lighting material. We used the high efficiency blue light polymer, Poly(9,9-dioctylfluorenyl-2,7-diyl) end capped with dimethylphenyl, PFO-DMP, as the gain media. We used the theory of photonic crystals to calculate the band structure and corresponding modes and measure the wavelength, polarization, and far-field diffraction pattern of lasers with different lattice structures. On the other hand, we employed a set of square lattice with different lattice constant and fixed r/a ratio (0.35) to measure the PFO-DMP gain characteristic and 1D resonance cavity model to analyze the emission cross section between emission cross section and wavelength.