Zobrazeno 1 - 10
of 36
pro vyhledávání: '"William Robinson MacGillivray"'
Autor:
Matthew Lennard Daniell, Michael Went, G F Hanne, William Edward Guinea, Klaus Bartschat, D. Payne, William Robinson MacGillivray, Mark Stevenson, Birgit Lohmann
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 38:3359-3366
Experimental and theoretical results are presented for the A2 spin asymmetry for elastic and inelastic scattering of spin-polarized electrons from rubidium, at incident electron energies of 15, 20, 30, 50 and 80 eV. Theoretical calculations are perfo
Publikováno v:
Nanotechnology. 15:1356-1362
Atomic beams of argon and neon in excited electronic metastable states have been used to pattern bare and dodecanethiol (DDT) resist coated Au/Si substrates. Positive and negative contrast patterning has been observed for DDT-Au/Si, and negative patt
Autor:
William Robinson MacGillivray, B. V. Hall, Igor Bray, Andrew James Murray, Y. Shen, M. C. Standage
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 37:1113-1124
Superelastic electron scattering measurements are presented from rubidium atoms excited by laser radiation to the 52P states at around 780 nm. The incident energy of the electrons was 18.4 eV corresponding to 20 eV incident electrons for the excitati
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 35:4885-4897
Measurements of the spin asymmetry for elastic scattering of spin-polarized electrons from krypton are presented, for incident energies in the range 20–200 eV. The measured spin asymmetries are generally small, and do not exceed 0.25 in magnitude a
Autor:
M. C. Standage, Graham R. Johnson, P. M. Johnson, William Robinson MacGillivray, B. V. Hall, Benjamin T. H. Varcoe
Publikováno v:
Measurement Science and Technology. 11:N111-N116
An improvement to the saturated absorption technique of long term stabilization of lasers is reported. This new method enables stabilization to the centre of saturated absorption features regardless of whether the peaks are symmetric or asymmetric. A
Autor:
William Robinson MacGillivray, M. C. Standage, Don H. Madison, Igor Bray, Andrew James Murray, Kathrin D. Winkler, M. Shurgalin
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:2439-2459
A comparison of measured Stokes parameters and atomic collision parameters (Plin,,L,P+) is made for the excitation and de-excitation of the 3S-3P and 4S-3P transitions of Na respectively, for electrons with incident energies of 22, 30 and 50 eV. Thes
Autor:
Andrew James Murray, Don H. Madison, Kathrin D. Winkler, M. Shurgalin, William Robinson MacGillivray, Igor Bray, M. C. Standage
Publikováno v:
Physical Review Letters. 81:4604-4607
Inelastic and superelastic electron scattering from the optically prepared $^{2}3P_{3/2}$ state of sodium has enabled atomic collision parameters to be deduced for the $4S\ensuremath{-}3P$ deexcitation and the $3S\ensuremath{-}3P$ excitation processe
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 31:4205-4224
An experimental investigation of electron-impact excitation of the 3 2D-state from the laser-excited 3 2P state of atomic sodium is reported for 30 eV incident electron energy. A detailed consideration of the measurement technique is presented, based
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 30:L541-L549
An experimental demonstration of the state-dependent nature of the forces exerted on an atom by resonant radiation is reported. Sodium atoms, which are contained in a highly collimated beam, are initially prepared in a particular ground hyperfine sub
Autor:
Peter M. Farrell, Robert Sang, M. C. Standage, M. Shurgalin, William Robinson MacGillivray, B. V. Hall
Publikováno v:
Canadian Journal of Physics. 74:977-983
This paper reports on the extension of the electron superelastic scattering technique to three new situations. The first considers scattering from the 32P3/2 level of Na that has been excited by two laser modes tuned, respectively, to the transitions