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利用有机共轭聚合物MEH-PPV优良的发光特性和光子晶体对光的调制特性,设计制备了有机半导体二维平板的准晶光子晶体激光器。该激光器是以MEH-PPV为增益介质,利用二维平板准晶光子晶体点缺陷和上下电极表面作为反射膜共同构建激光器的微腔,获得了具有激射效应的电抽运8重准晶垂直腔面发射激光器。该激光器的阈值电流为8 m A,激射波长为606 nm,谱线半峰全宽为0.5 nm,接近光纤光谱仪的分辨率极限。
Using the excellent luminescence properties of organic conjugated polymer MEH-PPV and the modulation characteristics of photonic crystals, a quasi-crystal photonic crystal laser with two-dimensional organic semiconductors was designed and fabricated. The laser is based on the MEH-PPV as the gain medium, and uses two-dimensional flat quasicrystalline photonic crystal point defects and the upper and lower electrode surfaces as the reflection film to jointly construct the micro-cavity of the laser to obtain the laser pumping 8-quasi- Cavity surface emitting laser. The laser has a threshold current of 8 m A, a lasing wavelength of 606 nm and a full width at half maximum of 0.5 nm, approaching the resolution limit of a fiber optic spectrometer.