Exciton-polariton wakefields in semiconductor microcavities

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• 作者：H. Terç ; as^a ; ^b ; ^{hugo.tercas@uibk.ac.at" class="auth_mail" title="E-mail the corresponding author} ; J.T. Mendonç ; a^c ; ^d ; ^{titomend@ist.utl.pt" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Exciton-polaritons ; Microcavities ; Wakefields ; Laser control ; Strong coupling
• 刊名：Physics Letters A
• 出版年：2016
• 出版时间：22 February 2016
• 年：2016
• 卷：380
• 期：7-8
• 页码：822-827
• 全文大小：551 K

文摘

We consider the excitation of polariton wakefields due to a propagating light pulse in a semiconductor microcavity. We show that two kinds of wakes are possible, depending on the constituents fraction (either exciton or photon) of the polariton wavefunction. The nature of the wakefields (pure excitonic or polaritonic) can be controlled by changing the speed of propagation of the external pump. This process could be used as a diagnostic for the internal parameters of the microcavity.