Mechanism of stimulated optical emission from MgO microcrystals with color centers

T Uchino, D Okutsu, R Katayama, S Sawai - Physical Review B—Condensed …, 2009 - APS
Recently, we reported that the MgO microcrystals that are prepared via the reaction between
magnesium and silicon monoxide under Ar atmosphere exhibit broadband laser emission at …

Photoelectron emission studies of cleaved and excimer laser irradiated single-crystal surfaces of NaNO3 and NaNO2

C Bandis, L Scudiero, SC Langford, JT Dickinson - Surface science, 1999 - Elsevier
Inorganic nitrates are susceptible to radiation damage, including ultraviolet (UV) laser
irradiation. We present a monochromatized X-ray photoelectron spectroscopy (XPS) and …

Characterization of particulates accompanying laser ablation of NaNO3

RL Webb, JT Dickinson, GJ Exarhos - Applied spectroscopy, 1997 - opg.optica.org
We present observations of submicrometer-to micrometer-sized particles generated by high-
fluence (10 J/cm2) 248-nm laser ablation of single-crystal NaNO3 in vacuum and at …

Noncatalytic dissociation of MgO by laser pulses towards sustainable energy cycle

T Yabe, MS Mohamed, S Uchida… - Journal of applied …, 2007 - pubs.aip.org
We succeeded in dissociating MgO using laser pulses without a reducing agent. The energy
efficiency from laser to magnesium reaction energy exceeded 42.5%. Although 1 kW CO 2 …

A mechanism of photo-induced desorption of oxygen atoms from MgO nano-crystals

PE Trevisanutto, PV Sushko, AL Shluger, KM Beck… - Surface science, 2005 - Elsevier
Using embedded cluster quantum mechanical calculations we developed a model of photo-
induced processes and desorption of MgO surface corners. Our calculations suggest that …

Interaction of wide band gap single crystals with 248 nm excimer laser radiation. V. The role of photoelectronic processes in the formation of a fluorescent plume from …

DR Ermer, SC Langford, JT Dickinson - Journal of applied physics, 1997 - pubs.aip.org
We examine the formation of a fluorescent plume during pulsed laser irradiation of wide
band gap materials at sub-band gap photon energies. We show that fluences near the …

Interaction of vacuum ultraviolet excimer laser radiation with fused silica. I. Positive ion emission

SR George, JA Leraas, SC Langford… - Journal of Applied …, 2010 - pubs.aip.org
We report time-and mass-resolved measurements of Si+ and O+ emission from ultraviolet-
grade fused silica during exposure to pulsed 157 nm excimer laser radiation at fluences …

Desorption of positive ions from ionic crystals accompanying 248 nm laser irradiation

C Bandis, SC Langford, JT Dickinson - Applied Physics Letters, 2000 - pubs.aip.org
We present a study of the energy distributions of positive ions (Na, Li, Ca, and Mg)
photodesorbed from cleaved NaCl, LiF, MgO, NaNO3, and CaCO3 surfaces during 248 nm …

Interaction of wide band gap single crystals with 248 nm excimer laser irradiation. VII. Localized plasma formation on NaCl single crystal surfaces

Y Kawaguchi, ML Dawes, SC Langford… - Journal of Applied …, 2001 - pubs.aip.org
Wide band gap insulators containing defects exposed to nanosecond pulses of UV laser
radiation at fluences close to the damage threshold often display highly localized flashes of …

Interaction of vacuum ultraviolet excimer laser radiation with fused silica. III. Negative ion formation

SR George, SC Langford, JT Dickinson - Journal of Applied Physics, 2010 - pubs.aip.org
We report mass-and time-resolved measurements of negative ions produced by exposing
fused silica to 157 nm radiation at fluences below the threshold for optical breakdown. The …