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Spin Torque On Molecular Rotation Induced By Polarized Electrons, J. W. Maseberg, Timothy J. Gay
Spin Torque On Molecular Rotation Induced By Polarized Electrons, J. W. Maseberg, Timothy J. Gay
Timothy J. Gay Publications
We have measured the linear and circular polarization of 391.4 nm N2+ B 2Σu+(υ’=0) → X2Σg+(υn=0) P-branch fluorescence produced by spin-polarized electron impact excitation of N2 X1 Σg+(υ=0) ground states. The resulting nonzero values of the circular polarization indicate that spin-rotation coupling, in conjunction with electron exchange excitation, acts to produce oriented rotational angular momenta in the excited molecular state prior to decay.
Use Of Partial-Wave Decomposition To Identify Resonant Interference Effects In The Photoionization–Excitation Of Argon, Timothy J. Gay, Chris H. Greene, J. R. Machacek, K. W. Mclaughlin, H. W. Van Der Hart, Orhan Yenen, Duane H. Jaecks
Use Of Partial-Wave Decomposition To Identify Resonant Interference Effects In The Photoionization–Excitation Of Argon, Timothy J. Gay, Chris H. Greene, J. R. Machacek, K. W. Mclaughlin, H. W. Van Der Hart, Orhan Yenen, Duane H. Jaecks
Timothy J. Gay Publications
We have studied simultaneous photoionization and excitation of Ar in the range of incident photon energies between 36.00 and 36.36 eV, where the resonant production of doubly excited neutral Ar states imbedded in the ionization continuum is dominant. By measuring the relative Stokes parameters of the fluorescence from residual Ar+∗ (3p4 [3P] 4p) ions (2P1/2, 465.8 nm transition; 2P3/2, 476.5 nm; 2D3/2, 472.7 nm; 2D5/2, 488.0 nm; 4P5/2, 480.6 nm; 4D5/2, 514.5 nm) we demonstrate a technique …