We evaluate the effective number of atoms in experiments where a probe laser beam with a Gaussian transverse profile passes through an atomic medium consisting in a cold atom cloud released from a magnetooptical trap. Considering the case where the initial distribution is a Gaussian function of position and of velocity, we give a quantitative description of the temporal variation of the effecti...

A laser system based on injection locking of a broad emitter diode laser operating at a wavelength of λ = 671 nm has been realized. With an injected power of 9.6 mW, 130 mW output power of the broad emitter diode laser is achieved. The broad emitter diode laser operates in a single spectral mode and its eigenmodes can be suppressed by more than 30 dB. By modulation of its operation current, sid...

We consider s→p interexciton far-infrared ~FIR! magnetooptical transitions in coupled double quantum wells ~DQWs!. Spatially direct ~intrawell! and indirect ~interwell! excitons in strained InxGa12xAs/GaAs symmetric DQWs with a simple valence band are considered. The evolution of the transition energies and oscillator strengths as functions of the transverse magnetic field B in different regime...

We present a density functional theory (DFT) based study of two-dimensional phase chromium bismuthate (CrBi), previously unknown material with exceptional magnetic and magnetooptical characteristics. Monolayer CrBi is ferromagnetic metal strong spin-orbit coupling induced by the heavy bismuth atoms, resulting in strongly anisotropic Ising-type ordering Curie temperature estimated to be higher t...

Implementing microwave frequency qubits in future quantum networks will require coherent interconversion between single optical and microwave photons. Recent progress towards this goal has been made in cavity optomechanics, where the position of a mesoscopic object modulates the frequency of both microwave and optical cavities [1]. To compliment optomechanics, it may be worth considering altern...

The average power of solid-state and fiber lasers has considerably increased during the last ten years. The 10 kW power is not record-breaking any longer, and a topical problem nowadays is to create lasers with a power of 100 kW. Therefore, the study of thermal effects caused by absorption of laser radiation in the bulk of optical elements becomes ever more important. The Faraday isolator (FI) ...