Photoinduced Electron Pairing in a Driven Cavity

Cavity Solitons in Driven VCSELs above Threshold

CSs have been theoretically predicted and recently experimentally demonstrated in broad area, vertical cavity driven semiconductor lasers (VCSELs) slightly below the lasing threshold. Above threshold, the simple adiabatic elimination of the polarization variable is not correct, leading to oscillatory instabilities with a spuriously high critical wave-number. To achieve real insight on the compl...

Photoinduced Electron Dynamics in Nanostructures

We have developed theoretical methods to calculate photoinduced electron dynamics in nanoclusters. Furthermore, a highly efficient computational program of massively parallel calculations for electron dynamics has been developed to investigate optical response of nanostructures of more than ten-nanometers in size. More specifically, we have achieved electron dynamics simulations with the maximu...

Nonequilibrium photoinduced electron transfer

Numerical Study of Flow and Heat Transfer in a Square Driven Cavity

A numerical approach called “SIMPLER” is used to investigate the  flow and heat transfer characteristics in a square driven cavity. The two-dimensional incompressible Navier-Stokes equations were solved and the results are depicted as contour plots of stream function, vorticity, and total pressure for Reynolds numbers from 1 to 10000. At the higher values of Reynolds number, an inviscid core re...

Photoinduced biphasic hydrogen evolution: decamethylosmocene as a light-driven electron donor.

Excitation of the weak electron donor decamethylosmocene on illumination with white light produces an excited-state species capable of reducing organically solubilized protons under biphasic conditions. Insight into the mechanism and kinetics of light-driven biphasic hydrogen evolution are obtained by analysis with gas chromatography, cyclic voltammetry, and UV/Vis and (1)H NMR spectroscopy. Fo...