Properties of the radiation Emitted by a Laser driven quantum Ring

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Abstract

We present the electromagnetic emission from one electron confined in a quantum ring driven by anintense laser field. We consider both a plain ring and one structured by six potential wells that producea static tangential force. Through a suitable one-dimensional model we numerically solve the associatedSchroedinger equation obtaining the correspondent time evolution of the wave-function.We show that the emission is formed by a wide plateau that can be both quasi-continuum or resolvedin discrete lines. We study the dependence of the emitted spectra from the polarization status of theexternal laser field and in particular we concentrate on the intensity of the emitted lines and of theirpolarization characteristic. The results illustrate how the fabrication of such systems provide importantpractical sources of creation and control of the radiation. Moreover, the dynamic of the ring, studied fromthe classical point of view, presents interesting chaotic behavior and can represent an important exampleof transition from classical chaos to quantum behavior.
Original languageEnglish
Number of pages0
Publication statusPublished - 2015

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