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1)  spontaneous emission
自发辐射
1.
Enhancement and suppression of the spontaneous emission of a two-level atom in a photonic crystal with a state-conservative photonic pseudogap;
具有态守恒赝隙的光子晶体中两能级原子自发辐射的增强与抑制
2.
Affects of loss and spontaneous emission to output characteristics of on Yb~(3+)-doped double-clad fiber lasers;
光纤损耗和自发辐射对掺镱双包层光纤激光器的影响
3.
spontaneous emission of free electron laser with an electrostatic wiggler;
静电摇摆器自由电子激光的自发辐射
2)  spontaneous radiation
自发辐射
1.
The quantum coherent control of spontaneous radiation in four level systems;
四能级系统中自发辐射谱线的量子相干控制
2.
The spontaneous radiation of a Vaidya-Bonner black hole;
Vaidya-Bonner黑洞的自发辐射
3.
The energy condition for the occurrence of the spontaneous radiation is obtained.
给出了带电蒸发黑洞发生自发辐射的能量条
3)  spantaneous emission
自发辐射
1.
The spantaneous emission of an electron in a magnetostatic field produced by current-carrying linear wire is investigated and an expression for the emission spectrum is obtained.
根据电子在长直载流导线磁场中的运动和相对论性电子产生辐射的一般规律,计算并分析了电子在这种磁场中运动所产生的自发辐射强度分布,最后的结果中包含一个重要因子sin2η,正是它把自由电子的自发辐射与受激辐射联系起来了。
2.
The spantaneous emission spectrum of the novel wiggler freeelectron is obtained by means of the general Bessel functions.
Pinhas工作的基础上,利用广义Besel函数计算了电子在这种摆动器中运动产生的自发辐射强度分布,得到了一个较普遍的自发辐射谱表达式。
3.
The spantaneous emission spectrum of an electron in a wiggler field produced by current—carrying linear wire is investigated and the relationship between spantaneous emission and stimulated radiation in this kind of field is derived by means of a single - particle approach.
根据经典辐射理论计算出电子在线电流摇摆场中运动产生的自发辐射强度分布;利用单粒子理论推导了自发辐射与受激辐射的关系;利用这种关系求出了电子在线电流摇摆场中运动产生自由电子激光的小信号增益。
4)  amplified spontaneous emission(ASE)
自发辐射(ASE)
5)  the spontaneous emission rate
自发辐射率
1.
The formulas of the quantum electrodynamics are applied to calculate the spontaneous emission rate of high-excited atoms in a cavity sandwiched by two semi-infinite dielectric slabs.
研究了半无限大介质板夹层对空腔中激发态原子的自发辐射率的影响。
2.
Quantum electrodynamics formulas are applied to calculate the spontaneous emission rate of an excited atom in the vicinity of a perfect reflecting mirror.
利用腔量子电动力学计算了原子在全反射镜面附近的自发辐射率。
6)  spontaneous emission spectrum
自发辐射谱
1.
This paper presents measurements of spontaneous emission spectrum and enhancement of modulation factor.
在国家同步辐射实验室(NSRL)800MeV电子储存环上进行的相干谐波储存环自由电子激光研究中,测量了光学速调管的自发辐射谱并提高了它的调制率。
2.
By using the ray trace method and mean carrier distribution approximation,possibility of determinins the spontaneous emission spectrum with the output spectrum from the end facet of a semiconductor laser is predicted.
利用射线法和平均载流子分布近似[1,2],从理论上预言了用阈值以下半导体激光器的端面输出谱来确定自发辐射谱的可能性。
补充资料:自发辐射
分子式:
CAS号:

性质:原子从高能级向低能级跃迁的一种方式。原子在高能级是不稳定的,其平均寿命为10-8秒,在无外来作用条件下,自发地释放出辐射能而降到低能级,这个过程称自发辐射过程。

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