Polaritons are quasiparticles that form in semiconductors when an elementary excitation
such as an exciton or a phonon interacts sufficiently strongly with light. In particular, exciton …

Optical trap** has been proven to be an effective method of separating exciton-polariton
condensates from the incoherent high-energy excitonic reservoir located at the pum** …

Exciton-polaritons (polaritons herein) offer a unique nonlinear platform for studies of
collective macroscopic quantum phenomena in a solid-state system. Sha** of polariton …

We present a systematic investigation of two-photon excitation processes in a GaAs-based
microcavity in the strong-coupling regime. We observe second harmonic generation …

Two-photon absorption (TPA) allows accessing “dark” states of matter that are otherwise
inaccessible to light, which serve as important building blocks for quantum information …

In this chapter a novel nonlinear spectroscopic approach using two single frequency lasers
is presented. In this connection, the blue exciton series of bulk Cu2O is investigated, which …

At a sufficiently high density, the bosonic exciton–polariton system breaks down and the
constituent electron, hole, and photon nature is revealed. Although conventional photon …

The terahertz (THz) region of the electromagnetic spectrum is considered to be
technologically under-developed in comparison to its neighbouring wavelength regions …

We present a theoretical description of the small-signal transient response of polariton laser
diodes (pol-LDs) based on simplified coupled rate equations describing the exciton …

The effect of an external resonator on the emission of a GaAs microcavity with embedded
quantum wells is investigated experimentally and theoretically. It was shown that the …