TY - JOUR
T1 - Nonresonant multiphoton ionization of H2, CO and CO2 by second harmonics of picosecond YAG laser
AU - Sekine, Shigeyuki
AU - Kokubun, Kiyohide
AU - Ichimura, Shingo
AU - Shimizu, Hazime
PY - 1993/9
Y1 - 1993/9
N2 - A nonresonant multiphoton ionization method has been applied for pressure measurement in ultrahigh vacuum. Second harmonics of a commercial picosecond YAG laser was used for ionization of gases in order to reduce noise caused by scattered laser light. Saturation of ionization was observed for H2, CO and CO2 gases at incident laser power density of about 1013 Wƃcm-2.
AB - A nonresonant multiphoton ionization method has been applied for pressure measurement in ultrahigh vacuum. Second harmonics of a commercial picosecond YAG laser was used for ionization of gases in order to reduce noise caused by scattered laser light. Saturation of ionization was observed for H2, CO and CO2 gases at incident laser power density of about 1013 Wƃcm-2.
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U2 - 10.1143/JJAP.32.L1284
DO - 10.1143/JJAP.32.L1284
M3 - Article
AN - SCOPUS:0027666395
SN - 0021-4922
VL - 32
SP - L1284-L1285
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 9
ER -