首页>
外国专利>
LASERS IN INDIRECT-BANDGAP SEMICONDUCTIVE CRYSTALS DOPED WITH ISOELECTRONIC TRAPS
LASERS IN INDIRECT-BANDGAP SEMICONDUCTIVE CRYSTALS DOPED WITH ISOELECTRONIC TRAPS
展开▼
机译:掺有等电子陷阱的带隙半导晶体中的激光
展开▼
页面导航
摘要
著录项
相似文献
摘要
There are disclosed lasers in indirect-bandgap semiconductive crystals, such as gallium phosphide crystals containing isoelectronic traps such as those provided by nitrogen or bismuth, in which low-threshold, high-gain stimulated emission of coherent radiation is obtained. It was previously believed that stimulated emission in indirect-bandgap materials was unlikely. In contrast to similarly-composed electroluminescent devices, such a laser typically has an optical resonator provided along the junction plane. An experimental embodiment is a superradiant laser that is optically pumped by coherent light along a line extending to an edge of the crystal.
展开▼