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arXiv 0901.4270cond-mat.other
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亮腔极化激元孤子

Bright cavity polariton solitons

O. A. Egorov, D. V. Skryabin, A. V. Yulin, F. Lederer

摘要:

半导体微腔中激子极化激元的色散关系的下分支,在强耦合制度下工作,包含沿一个空间方向的正曲率和负曲率的部分。我们发现,这导致了由排斥极化激元非线性支持的稳定的一维亮微腔孤子的存在。为了实现本地化沿第二个横向方向,我们建议创建一个特殊的孤子波导,通过改变腔失谐,因此在这样一种方式,孤子的存在的边界,孤子只允许在所需的宽度的条纹。

英文摘要:

The lower branch of the dispersion relation of exciton polaritons in semiconductor microcavities, operating in the strong-coupling regime, contains sections of both positive and negative curvature along one spatial direction. We show that this leads to the existence of stable one-dimensional bright microcavity solitons supported by the repulsive polariton nonlinearity. To achieve localization along the second transverse direction we propose to create a special soliton waveguide by changing the cavity detuning and hence the boundary of the soliton existence in such a way that the solitons are allowed only within the stripe of the desired width.

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