激光线宽
天线(收音机)
偶极子
偶极子天线
吸收(声学)
辐射模式
消光(光学矿物学)
辐射
物理
光子学
光学
光电子学
材料科学
电信
计算机科学
激光器
量子力学
作者
E. Castanié,Rémi Vincent,Romain Pierrat,Rémi Carminati
摘要
We compute generalized absorption and extinction cross-sections of an optical dipole nanoantenna in a structured environment. The expressions explicitly show the influence of radiation reaction and the local density of states on the intrinsic absorption properties of the antenna. Engineering the environment could allow to modify the overall absorption as well as the frequency and the linewidth of a resonant antenna. Conversely, a dipole antenna can be used to probe the photonic environment, in a similar way as a quantum emitter.
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