Even though threading dislocations in GaN epitaxial layers have been demonstrated to be effective nonradiative recombination centers,the CL band edge peak intensity does not decrease as the dislocation density increases.
结果表明,GaN外延层中的穿透位错是材料有效的非辐射复合中心,但GaN的CL带边峰强度并不随位错密度的增加而减少。
Because of the wide application of advantage technologies in weapon systems,such as ELINT,electronic countermeasures and anti-radiation missile,passive location technologies for non-radiating targets through signals from non-cooperative transmitter have been of great interest- ing.
由于 ELINT、电子对抗以及反辐射导弹等技术在武器系统中的广泛应用,利用非合作照射源实现对非辐射目标的无源定位技术越来越引起人们广泛的重视。
Based on non-radiation transitions of heavily doped ions in the crystal fiber, a laser-pumped fiber-optic thermal tip has been developed for laser thermotherapy.
利用晶体光纤中高掺杂离子的非辐射跃迁机制,研制成功一种可用于激光热疗的高掺杂光纤光热转换头。