Inhibition of two-photon absorption due to dipole-dipole interaction in nanoparticles

被引：23

作者：

Singh, Mahi R. ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Phys & Astron, London, ON N6A 3K7, Canada

来源：

PHYSICS LETTERS A | 2008年 / 372卷 / 30期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/j.physleta.2008.05.056

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated the inhibition of two-photon absorption in photonic crystals doped with an ensemble of four-level nanoparticles. The particles are interacting with one another by the dipole-dipole interaction. Dipoles in nanoparticles are induced by a selected transition. Numerical simulations have been performed for an isotropic photonic crystal. Interesting phenomena have been predicted such as the inhibition of the two-photon absorption due to the dipole-dipole interaction. It has also been found that the inhibition effect can be switched on and off by tuning a decay resonance energy within the energy band of the crystal. A theory of dressed states has been used to explain the results. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：5083 / 5088

页数：6

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