TY - JOUR
T1 - Intense field double detachment of atomic versus molecular anions
AU - Albeck, Y.
AU - Lerner, G.
AU - Kandhasamy, D. M.
AU - Chandrasekaran, V.
AU - Strasser, D.
N1 - Publisher Copyright:
© 2015 American Physical Society.
PY - 2015/12/1
Y1 - 2015/12/1
N2 - The interaction of intense ultrafast laser pulses with atomic F- and with molecular SF6- anions is directly compared. The double-detachment mechanism is investigated by a systematic variation of peak intensity, polarization ellipticity, and pulse shape. For both systems, the observed weak polarization ellipticity dependence is not consistent with a rescattering-based mechanism. A double-detachment saturation intensity of 22±4×1013W/cm2 is determined for the atomic anion, which is significantly higher than the 9±2×1013W/cm2 of the analogous molecular system. The different atomic and molecular responses to spectral chirp and third-order dispersion induced pulse shapes are discussed in the context of the double-detachment time scale.
AB - The interaction of intense ultrafast laser pulses with atomic F- and with molecular SF6- anions is directly compared. The double-detachment mechanism is investigated by a systematic variation of peak intensity, polarization ellipticity, and pulse shape. For both systems, the observed weak polarization ellipticity dependence is not consistent with a rescattering-based mechanism. A double-detachment saturation intensity of 22±4×1013W/cm2 is determined for the atomic anion, which is significantly higher than the 9±2×1013W/cm2 of the analogous molecular system. The different atomic and molecular responses to spectral chirp and third-order dispersion induced pulse shapes are discussed in the context of the double-detachment time scale.
UR - http://www.scopus.com/inward/record.url?scp=84950134598&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.92.061401
DO - 10.1103/PhysRevA.92.061401
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AN - SCOPUS:84950134598
SN - 1050-2947
VL - 92
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 6
M1 - 061401
ER -