Showing papers by "Jianying Zhou published in 1996"
TL;DR: Ultrafast optical bistability was observed in a planar optical waveguide made with a 2,9,16,23-tetraoctadecanoylamido-substituted vanadyl phthalocyanine-doped polystyrene film that was predominantly electronic effects.
Abstract: Ultrafast optical bistability was observed in a planar optical waveguide made with a 2,9,16,23-tetra-octadecanoylamido-substituted vanadyl phthalocyanine-doped polystyrene film. Input–output curves with hysteresis characteristics were measured with laser pulses of 60-ps pulse width at 532 nm. The switchup and switchdown times were less than 10 and 20 ps, respectively. The origin of the nonlinearity giving rise to optical bistability was predominantly electronic effects.
8 citations
01 Jan 1996
TL;DR: In this article, the authors discuss the nature of the electronic states of the metal complexes from a quantum mechanical approach, and show that theory has not been available to our knowledge to successfully explain the absorption spectra without using adjustable parameters to fit the experimental results.
Abstract: Complexes of transition metal ions with aromatic.Iigands, notably, Ruthenium(2+) complexes with tris-2,2′-pyridine(bpy) or tris-1,10-phenanthroline(phen), find important applications to photosensitization, photocatalization[1] and recently, to the determination of DNA secondary structures[2]. Metal-to-transfer(MLCT), in which an electron is optically excited from a metal orbital, d, to a ligand orbital, π* is a frequently encountered optical process involved in inorganic phtochemistry.However, theory has not been available to our knowledge to successfully explain the absorption spectra without using adjustable parameters to fit the experimental results.ln this part, we discuss the nature of the electronic states of the metal complexes from a quantum mechanical approach.