Browsing Articole din publicaţii internaţionale by Author "ROTARU, A. Kh."

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The appearance of structures of excitons, photons, and biexcitons, regular and chaotic in time, in direct-band semiconductors

TRONCIU, V. Z.; SHURA, K. V.; ROTARU, A. Kh. (Springer Nature Switzerland, 2002)

The dynamic properties of excitons and biexcitons in a ring cavity are studied. The nonlinearity of the problem is due to the direct binding of two excitons into a biexciton by virtue of the Coulomb attraction between them. ...
Nonlinear propagation of light in semiconductors in the presence of two-photon excitation of biexcitons

ROTARU, A. Kh.; TRONCHU, V. Z. (Springer Nature Switzerland, 1998)

The steady-and nonsteady-state passage of light through a ring resonator in the presence of two-photon excitation of biexcitons from the ground state of the crystal is studied. The values of the parameters for which ...
Nonlinear time-independent and time-dependent propagation of light in direct-gap semiconductors with paired excitons bound into biexcitons

ROTARU, A. Kh.; TRONCHU, V. Z. (Springer Nature Switzerland, 1997)

We study a new class of nonlinear cooperative phenomena that occur when light propagates in direct-gap semiconductors. The nonlinearity here is due to a process, first discussed by A. L. Ivanov, L. V. Keldysh, and V. V. ...

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