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Nonlinear optical response of a two-dimensional quantum-dot supercrystal: Emerging multistability, periodic and aperiodic self-oscillations, chaos, and transient chaos

Ryzhov, I., Malikov, R. F., Malyshev, A. & Malyshev, V. A., 16-Sep-2019, In : Physical Review A. 100, 3, p. 1-15 16 p., 033820.

Research output: Contribution to journalArticleAcademicpeer-review

  • Igor Ryzhov
  • Ramil F. Malikov
  • Andrey Malyshev
  • Victor A. Malyshev

We conduct a theoretical study of the nonlinear optical response of a two-dimensional semiconductor quantum-dot supercrystal subjected to a quasiresonant continuous-wave excitation. A constituent quantum dot is modeled as a three-level ladderlike system (comprising the ground, the one-exciton, and the biexction states). To study the stationary response of the supercrystal, we propose an exact linear parametric method of solving the nonlinear steady-state problem, while to address the supercrystal optical dynamics qualitatively, we put forward a method to calculate the bifurcation diagram of the system. Analyzing the dynamics, we demonstrate that the supercrystal can exhibit multistability, periodic and aperiodic self-oscillations, and chaotic behavior, depending on parameters of the supercrystal and excitation conditions. The effects originate from the interplay of the intrinsic nonlinearity of quantum dots and the retarded interdot dipole-dipole interaction. The latter provides a positive feedback which results in the exotic supercrystal optical dynamics. These peculiarities of the supercrystal optical response open up a possibility for all-optical applications and devices. In particular, an all-optical switch, a tunable generator of THz pulses (in self-oscillating regime), a noise generator (in chaotic regime), and a tunable bistable mirror can be designed.

Original languageEnglish
Article number033820
Pages (from-to)1-15
Number of pages16
JournalPhysical Review A
Volume100
Issue number3
Publication statusPublished - 16-Sep-2019

    Keywords

  • LYAPUNOV EXPONENTS, THIN-LAYER, BISTABILITY, METAMATERIALS, COMPUTATION, REFLECTION, FILM

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