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arXiv 1602.05977cond-mat.mes-hallphysics.optics
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纳米等离子体的局域态密度

Local density of states for nanoplasmonics

Tigran V. Shahbazyan

摘要:

我们得到的局域态密度(LDOS)的任何纳米等离子体系统的频率范围内占主导地位的局部表面等离子体。通过包括欧姆损失在一个一致的方式,我们表明,等离子体LDOS是成比例的本地场强度归一化的吸收功率。我们得到明确的量子发射体和等离子体之间的能量转移(ET),以及位于附近的等离子体结构的施主和受主之间的公式。在后一种情况下,我们发现,等离子体辅助的ET率是成比例的LDOS产品在供体和受体的位置,获得,在一般的形式,等离子体ET增强因子,并建立福斯特为主的和等离子体为主的ET制度之间的过渡开始。

英文摘要:

We obtain the local density of states (LDOS) for any nanoplasmonic system in the frequency range dominated by a localized surface plasmon. By including the Ohmic losses in a consistent way, we show that the plasmon LDOS is proportional to the local field intensity normalized by the absorbed power. We obtain explicit formulas for the energy transfer (ET) between quantum emitters and plasmons as well as between donors and acceptors situated near a plasmonic structure. In the latter case, we find that the plasmon-assisted ET rate is proportional to the LDOS product at the donor and acceptor positions, obtain, in a general form, the plasmon ET enhancement factor, and establish the transition onset between Forster-dominated and plasmon-dominated ET regimes.

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