“threshold current density”的概念、定义、翻译、参考文献-科学参考

单词	threshold current density
释义	threshold current density Encyclopedia 工学量子阱半导体激光器释 threshold current density阈值电流密度激光器谐振腔内总的光增益能够克服总的光损耗所需的最小电流密度。表征电注入半导体激光器实现阈值激射或振荡的物理量。
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