Resonant surface excitation of Potassium salts by selective laser desorption
EMSL Project ID
2411
Abstract
The objective of the proposed research is to lead to an understanding of some of the relaxation mechanisms of electronically excited states on ionic surfaces. This will be accomplished through measurements of the photostimulated neutral bromine atom yields from KBr and KI single crystals using a pump-probe technique, measuring bromine yields as a function of time-delay between two UV laser pulses. Two-laser excitation experiments specifically excite laser-generated transient centers with the bulk crystal. Equipment needs: ultrahigh vacuum apparatus Lasers : Nd:YAG pumped frequency-doubled dye laser capable of producing mJ pulses, ArF excimer laser (193 nm, 6.4 eV), a 5 ns frequency tripled Nd:YAG laser, and amplified Ti-sapphire laser system operating at a fundamental wavelength of 767 nm, frequency doubled in KDP crystals.
Project Details
Project type
Exploratory Research
Start Date
2002-06-03
End Date
2005-06-05
Status
Closed
Released Data Link
Team
Principal Investigator