Articles you may be interested inElectron-phonon interaction effect on the energy levels and diamagnetic susceptibility of quantum wires: Parallelogram and triangle cross section

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This study was a numerical and experimental investigation of lowtemperature auto-ignitions behind reflected shock waves in which a shock tube was employed as the experimental system. We used a high-speed video camera and the Schlieren method to visualize the ignition phenomena. Experiments were performed over a temperature range from 54910 to 134911 K and a pressure range from 56 to 203  kPa, and a non-diluted stoichiometric acetylene-oxygen mixture was chosen as the combustible gas. We introduced a numerical simulation to help us understand the disturbed temperature distribution behind bifurcated shock waves due to interference between reflected shock waves and the boundary layer developed behind incident shock waves.Additionally, we experimentally observed and evaluated quantitatively a tendency for ignition positions to be located farther from the reflecting wall as the temperature decreased behind reflected shock waves. To focus our attention on the ignition positions, we classified the ignition types behind reflected shock waves as near-wall ignition and far-wall ignition by 4.7 mm distance from Combustion and Flame 159 (2012)

InGaAs quantum wires ͑QWRs͒ with cross sections as narrow as 10 nmϫ20 nm have been fabricated on a (311)A InP V-grooved substrate under an As 2 source. Trench-type InGaAs QWRs consist of (111)A and (331)B facets with an angle of about 22°. Cathode-luminescence and photoluminescence measurements confirmed the luminescence peak arising from the QWRs.

We have demonstrated a new method to generate intense THz-radiation, up to a sub-microwatt level from a saturable Bragg reflector in a magnetic field. The saturable Bragg reflector is substituted in place of the end mirror in a femtosecond mode-locked Ti:sapphire laser pumped by an all-solid-state green laser.