正割平方势与超晶格量子阱中带电粒子的电磁辐射
Bandaoti Guangdian/Semiconductor Optoelectronics(2011)
Abstract
在经典力学框架内,引入正割平方势,解析地给出了粒子的运动轨迹和振动频率。结果表明,量子阱沟道辐射的谱密度分布由线形因子决定,且随着谐波数增加,强度与谐波数平方反比减少;由于噪声的影响,高次谐波分量常被噪声掩盖,实验上,只剩下不多的几条谱线,这为低次谐波的进一步实验研究提供了可能。
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Key words
Channeling radiation,Relativistic effect,Secant square potential,Spectral density distribution,Superllatice
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