1)  spontaneous emission lifetime
自发发射寿命
1.
Based on physics of micro-cavity and quantum well, the spontaneous emission spectra and spontaneous emission lifetime in the vertical cavity surface emitting laser have been calculated.
应用微腔物理和量子阱物理 ,计算了量子阱垂直腔面发射激光器的自发发射谱和自发发射寿命 ,通过对半导体激光器传输函数的研究 ,发现缩短自发发射寿命是垂直腔面发射激光器实现高速调制响应的主要原因 。
2)  spontaneous emission lifetime modulation
自发发射寿命调制
1.
Supposing that input modulation signal is actual phonetic signal and its adjoint noise is additive white noise, for spontaneous emission lifetime modulation and photon lifetime modulation, we derive signal-to-noise ratio (SNR) in various parameters through frequency domain analysis against laser in the premiss of large input SNR.
假定输入调制信号为实际语音信号 ,伴随语音信号的噪声为加性白噪声 ,在大输入信噪比前提下 ,对微腔半导体激光器的自发发射寿命调制、光子寿命调制两种调制方式进行了频域分析 ,得到了不同参数下的信噪比增益 。
3)  spontaneous
自发
1.
Constitution is the Politics Community s Spontaneous Order;
论宪法是政治共同体的自发秩序
2.
Analysis on the National Health Plan & the Spontaneous P.E-Group of the College Students;
浅谈全民健身计划与大学生自发的体育群体
3.
A scientific experiment of brain computer interface based on spontaneous EEG is designed,which is produced by motor imagination and used as the control signal.
针对基于自发脑电信号的脑机接口研究,设计了一种科学的且易实现的运动想象实验范例,利用运动想象脑电作为BCI的控制信号。
4)  spontaneity
自发
1.
Consciousness and Spontaneity of the Contemporary Civil Society;
当代市民社会发展的自觉与自发
2.
The development of literature characterized by Feminism is a course from spontaneity to self-awareness in China s contemporary literature.
女性主义文学的发展在中国现当代文学中经历了一个从自发到自觉的过程。
3.
As two states of human being s existence and development,consciousness and spontaneity exist in every aspect of society and history of human being.
自觉与自发作为人存在发展的两种状态呈现于人类社会历史的各个领域之中,自觉性作为人存在发展的内蕴指向不断扬弃自发性而实现自身,而自发性作为自觉性的前提和基础不断为人的发展提供新的领域和契机。
5)  spontaneousness
自发
1.
Consciousness and spontaneousness:as shown in the market economy;
自觉与自发:以市场经济为例
6)  spontaneous formation
自发形成
1.
The effects of mixed ratio and concentration on the spontaneous formation of vesicles in a cationic cetyltrimethylammonium bromide (CTAB) and anionic sodium dodecylbenzenesulfonate (SDBS) system were investigated.
讨论了十六烷基三甲基溴化铵/十二烷基苯磺酸钠(CTAB/SDBS)复配比例、体系浓度对其囊泡自发形成的影响和不同制备方法与放置时间对囊泡尺寸的影响,同时用TEM考察了囊泡的结构与形态。
参考词条
补充资料：自发发射
分子式：
CAS号：

性质：即使不存在外电磁场的微扰作用，仍能发生的发射模式。在n态与m态之间的跃迁，由自发发射的爱因斯坦系数Anm所决定。

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