41 research outputs found
Geometrical effects on the isotopically selective photodissociation of SF6 under CO2 laser pulses
No full textSub-wavelength ripple formation on various materials induced by tightly focused femtosecond laser radiation
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Deprescribing interventions in primary health care mapped to the Behaviour Change Wheel: A scoping review
No full textDeprescribing interventions in primary health care mapped to the Behaviour Change Wheel: A scoping revie
Energy and pressure dependence of the CO2 laser induced dissociation of sulfur hexafluoride
No full textYield and enrichment studies of C-13 isotope by multi-photon dissociation of Freon-22 at low temperatures
No full textLight from Porous Silicon by Multiphoton Vibronic Excitation
Get PDFWe study the emission of photons from porous Si after high-level vibrational excitation in the Si-O absorption band using a pulsed CO2 laser. Narrow resonances in the efficiency of light generation are discovered at 1030 and 1084 cm-1. Time-resolved experiments on the luminescence and the ir-induced changes in optical transparency show that the two excitation modes are characterized by different temporal responses. Additionally, their spectral distributions differ substantially. For excitation at 1030 cm-1 the familiar photoluminescence band of porous Si appears. We suggest microscopic processes responsible for the light emissions
