We propose a scheme to generate double electromagnetically induced transparency and optimal cross-phase modulation for two slow, copropagating pulses with matched group velocities in a single species of atom, namely 87Rb. A single pump laser is employed and a homogeneous magnetic field is utilized to avoid cancellation effects through the nonlinear Zeeman effect. We suggest a feasible preparati...

We have measured the carrier spin dynamics in p-doped InAs/GaAs quantum dots by pump-probe and time-resolved photoluminescence experiments. We obtained experimental evidence of the hyperfine interaction between hole and nuclear spins. In the absence of an external magnetic field, our calculations based on dipole-dipole coupling between the hole and the quantum dot nuclei lead to a hole-spin dep...

In the present report, a case complicated with Horner's syndrome after off-pump coronary artery bypass (OPCAB) was presented. This case showed ptosis and miosis in the left eye promptly after OPCAB. No abnormal neurological findings other than Horner's syndrome were observed in postoperative examinations including head magnetic resonance imaging (MRI), and this case was thought to have Horner's...

We have excited and detected coherent spin waves in exchange-biased IrMn/Co systems by ultrafast laser pump-probe magneto-optical Kerr effect (MOKE). Such ultrafast measurements provide opportunity to study the ultimate time scale for these processes as well as determination of fundamental parameters such as anisotropy and damping. This is in analogy with ferromagnetic resonance (FMR), but with...

In this work, the results are presented of a 3D numerical magneto-hydrodynamic (MHD) simulation of direct current (DC) electromagnetic pump for liquid aluminum at large Reynolds number under externally imposed non-uniform magnetic field. The formulation of the magneto hydrodynamic model has been derived from the Reynolds-Averaged NavierStokes equations with standard k-ε turbulence model coupled...

Purpose: In epiphora, dacryocystography (DCG) is established for localization of underlying dacryostenosis. DCG is of limited value concerning the depiction of periductal structures, and does not provide functional information e.g. in dysfunction of the canalicular muscle pump or relative stenoses for reasons of active instillation of the contrast agent. Dacryoszintigraphy provides sufficient f...

Conduction electrons are used to optically polarize, detect, and manipulate nuclear spin in a (110) GaAs quantum well. Using optical Larmor magnetometry, we find that nuclear spin can be polarized along or against the applied magnetic field, depending on field polarity and tilting of the sample with respect to the optical pump beam. Periodic optical excitation of the quantum-confined electron s...

Understanding and controlling the transport of water across nanochannels is of great importance for designing novel molecular devices, machines and sensors and has wide applications, including the desalination of seawater. Nanopumps driven by electric or magnetic fields can transport ions and magnetic quanta, but water is charge-neutral and has no magnetic moment. On the basis of molecular dyna...

Electron cyclotron resonance heating (ECRH) is a technique being widely utilized nowadays in magnetic fusion experiments. It is also considered for application in ITER, for plasma heating and neoclassical tearing mode control. The analysis [1-3] of different parametric decay instabilities (PDIs) potentially dangerous for mm-waves at the ECR frequencies in the presence of the monotonous plasma p...

Pump-probe Kerr spectroscopy reveals evidence for transient photoinduced magnetization (PIM) near Tc in the colossally magnetoresistive manganite La0.7Ca0.3MnO3. For temperatures above Tc, the PIM signature reaches full strength at the field-driven magnetic phase transition, while below Tc it exhibits a magnetic activation threshold of ~0.5 T. We compare the temperature dependence of the effect...