带电电介质芯层粒子对红外线的消光
Infrared light extinction by charged dielectric core-coat particles
摘要：
本文研究了过剩电子对具有核-壳结构的电介质粒子红外消光的影响，并提出将其用于尘埃等离子体中粒子电荷的光学测量。粒子由具有负电子亲和势的内核和具有正电子亲和势的外层组成。核和涂层都产生了强烈的横向光学声子共振，导致在红外线的异常光散射。由于电子亲和力的径向分布，电子在涂层区域中积累，使得这种类型的颗粒的红外消光非常电荷敏感，特别是由于仅由于芯-涂层结构而产生的共振引起的消光。这种共振的最大值是在远红外线，并响应于普通尘埃实验室等离子体中可实现的粒子电荷。
英文摘要：
We study the effect of surplus electrons on the infrared extinction of dielectric particles with a core-coat structure and propose to use it for an optical measurement of the particle charge in a dusty plasma. The particles consist of an inner core with negative and an outer coat with positive electron affinity. Both the core and the coat give rise to strong transverse optical phonon resonances, leading to anomalous light scattering in the infrared. Due to the radial profile of the electron affinity electrons accumulate in the coat region making the infrared extinction of this type of particles very charge-sensitive, in particular, the extinction due to a resonance arising solely due to the core-coat structure. The maximum of this resonance is in the far-infrared and responds to particle charges realizable in ordinary dusty laboratory plasmas.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
