查询词典 spontaneous emission

spontaneous emission：自发放射

一个光子与半导体内电子的交互作用,可分为吸收、自发放射(spontaneous emission)及受激放射(stimulated emission). 在半导体材料内,通常有二个能带,即导带(边缘能阶为Ec)及价带(边缘能阶为Ev),其间之能差谓之能隙(Eg=Ec-Ev). 当半导体被光照射,

spontaneous emission：自发辐射

当电子与空穴复合而产生光时,这些光被称为自发辐射(Spontaneous Emission),其光的方向如图5(a)所示,是多方向的,这是发光二极管的发光特性. 但是,如果发出的光是激发辐射(Stimulated)的,如图5(b)所示其方向一致,则此种元件被称为半导体激光二极管(LD:Laser Diode).

spontaneous emission：自发发射

spontaneous crack propagation 自发裂缝传播 | spontaneous emission 自发发射 | spout 瘤口

spontaneous emission：自發射

spin-orbit splitting 自旋-軌道分裂 | spontaneous emission 自發射 | spontaneous fission 自發[核]分裂= 自發裂變

amplified spontaneous emission：放大自发射

"倍功发电机","amplidyne generator" | "放大自发射","amplified spontaneous emission" | "放大器;增幅器","amplifier"

amplified spontaneous emission：放大的自发发射

放大、放大器 "amplification , amplifier" | 放大的自发发射 Amplified Spontaneous Emission | 放大的自发辐射噪声、ASE噪声 Amplified Spontaneous Emission noise

amplified spontaneous emission：放大自发辐射

原发性痛敏:persistent spontaneous pain | 放大自发辐射:amplified spontaneous emission | 反复自然性流产:recurrent spontaneous abortion

spontaneous emission rate：自发辐射速率

反复自然流产:spontaneous abortion | 自发辐射速率:spontaneous emission rate | 参量下转换:Spontaneous parametric down-conversion

self-amplified spontaneous emission：自放大自发辐射

自放大自发辐射:self-amplified spontaneous emission | 自燃:spontaneous combustion | 流产:Spontaneous Abortion

spontaneous emission coefficient：自发发射系数,自发射系数

spontaneous emission 自然放出 | spontaneous emission coefficient 自发发射系数,自发射系数 | spontaneous emission noise 自发射噪声

Jaycee：房祖名

房祖名(Jaycee)投资六位数字代理薄荷糖,前晚於中环某酒吧举行庆祝派对,成龙大哥现身撑爱子场,引起一阵混乱,可惜成龙大哥一到场即急步进场,之后又走后门离去,整晚显得十分低调.

basement complex：基盘岩群;基盘杂岩

"基盘","basement" | "基盘岩群;基盘杂岩","basement complex" | "基盘岩石","basement rock"