J. Brian Atkinson

batknsn@uwindsor.ca

Emeritus Professor of Physics

M.A., D. Phil. (Oxford 1967)

Research Interests:

• Spectroscopy of Excimer Molecules and Clusters:    High and medium resolution spectroscopy of excimers and clusters including Hg and rare gas atoms.  Resonantly-enhanced multi-photon ionisation is used with time of flight mass analysis.
• Lifetimes of Atoms and Molecules:    Experimental measurements of the lifetimes of selected levels of atoms and molecules.  Past work has studied the alkalis, Hg, Pb, and Hg₂.
• Collisional cross-sections of atoms and molecules:    Experimental cross-sections for mixing of the fine-structure states of the alkalis have been made.  More recent work has measured the cross-sections for the formation of excimers in their excited states by collisions between excited and ground state atoms.

My laboratory is now closed. I will not be taking any new graduate students.

Department of Physics Faculty Page.

Publications:

Refereed Journals

• J. Koperski, J.B. Atkinson, and L. Krause, 2001. "Determination of Interatomic Potentials for the X0⁺, A0⁺, and B1 states of HgKr from Fluorescence and Excitation Spectra", J. Mol. Spectry., 207, 172-188.
• A. Czajkowski, J.B. Atkinson, and L. Krause, 2000. "Formation and Decay of the HgZn(B0⁺) Exciplex", Can. J. Phys., 78, 521-528.
• J. Koperski, J.B. Atkinson, and L. Krause, 1998. "First observations of laser-excited Hg₃ and Hg₂RG spectra in a supersonic expansion beam", J. Mol. Spectry., 187, 181-192.
• J. Koperski, J.B. Atkinson, and L. Krause, 1997. "The G0_u⁺(6¹P₁) - X0_g⁺ excitation and fluorescence spectra of Hg₂ excited in a supersonic jet", J. Mol. Spectry., 184, 300-308.
• L. Krause, W. Kedzierski, A. Czajkowski, and J.B. Atkinson, 1997. "Laser spectroscopy of Hg₂ excimers", Physica Scripta, T72, 48-52.
• A. Czajkowski, W. Kedzierski, J.B. Atkinson, and L. Krause, 1997. "Rotational analysis of the H1_u ← A0_g^± (1,0) bands of (²⁰²Hg)₂", J. Mol. Spectry., 181, 1-10.
• W. Kedzierski, J. Supronowicz, A. Czajkowski, J.B. Atkinson, and L. Krause, 1995. "High resolution spectroscopy of the G0_u⁺ ← A0_g^± transition in the (²⁰²Hg)₂ excimer", J. Mol. Spectrosc. 173, 510-31.
• A. Czajkowski, W. Kedzierski, J.B. Atkinson, and L. Krause, 1995. "The rotationally resolved H1_u ← A0_g^± electronic spectrum of (²⁰²Hg)₂", Chem. Phys. Lett. 238, 327-332.
• J. Supronowicz, J.B. Atkinson, and L. Krause, 1994. "Laser spectroscopy of some HgCd spin-orbit states", Phys. Rev. A 50, 3719-3726.
• J. Koperski, J.B. Atkinson, and L. Krause, 1994. "Molecular beam spectroscopy of the 1_u(6³P₂) - X0_g⁺ and 1_u(6³P₁) - X0_g⁺ transitions in Hg₂", Can. J. Phys. (Herzberg Issue) 72, 1070-77.
• J. Koperski, J.B. Atkinson, and L. Krause, 1994. "Spectroscopy of the A0⁺ and B1 states in HgAr and HgNe", Chem. Phys. 186, 401-7.
• J. Supronowicz, D. Petro, J.B. Atkinson, and L. Krause, 1994. "Laser spectroscopy of the HgCd exciplex", Phys. Rev. A 50, 2161-72.
• J. Supronowicz, E. Hegazi, J.B. Atkinson, and L. Krause, 1994. "Fluorescence and excitation spectra of the D0⁺, E1, and G1 states of the HgZn exciplex", Chem. Phys. Lett. 222, 149-155.
• W. Kedzierski, J.B. Atkinson, and L. Krause, 1994. "The ³Σ _g⁺ (4³P, 4³P) ←³Σ_u⁺ (4³P, 4¹S) vibronic spectrum of Zn₂", Chem. Phys. Lett. 222, 146-148.
• J. Koperski, J.B. Atkinson, and L. Krause, 1994. "The 0_u⁺(6 ³P₁) ← X0_g⁺ spectrum of Hg₂ excited in a supersonic jet", Chem. Phys. Lett. 219, 161-168.
• W. Kedzierski, J. Supronowicz, A. Czajkowski, M.J. Hinek, J.B. Atkinson, and L. Krause, 1994. "The rotationally resolved G0_u⁺ ← A0_g^± electronic spectrum of the (²⁰²Hg)₂ excimer", Chem. Phys. Lett. 218, 314-319.
• J. Supronowicz, E. Hegazi, J.B. Atkinson, and L. Krause, 1994. "Laser spectroscopy of some high-lying HgZn spin-orbit states", Chem. Phys. Lett. 218, 240-245.
• W. Kedzierski, J.B. Atkinson, and L. Krause, 1993. "Laser-induced fluorescence from the  ³Π_u⁺(4³P, 4³P) state of Zn₂", Chem. Phys. Lett. 215, 185-187.
• J. Supronowicz, M.J. Hinek, J.B. Atkinson, and L. Krause, 1993. "Mixing of the Cd 5³P fine structure states by Hg collisions", Chem. Phys. Lett. 213, 282-288.
• W. Kedzierski, J.B. Atkinson, and L. Krause, 1992. "Laser Spectroscopy of the  ³Σ_u⁺ (4³P, 4³P) state of Zn₂", Chem. Phys. Lett. 200, 103-107.
• J. Supronowicz, W. Kedzierski, J.B. Atkinson, and L. Krause, 1992. "Laser spectroscopy of the B0⁺ state in HgZn", Phys. Rev. A 45, 538-541.
• W. Kedzierski, J.B. Atkinson, and L. Krause, 1991. "Laser-induced Fluorescence from the ³Π_u (4³D) state of Zn₂", Chem. Phys. Lett. 181, 427-430.
• W. Kedzierski, J. Supronowicz, J.B. Atkinson, L. Krause, M.Couty and G. Chambaud, 1990. "Laser spectroscopy of the ¹Σ_u⁺(4 ¹P) and ³Π_u (4 ³P) states in Zn₂", Chem. Phys. Lett. 175, 221-224.
• W. Kedzierski, J. Supronowicz, J.B. Atkinson, and L. Krause, 1990. "Laser-induced ¹Σ_u⁺ ← ³Π_g  excitation spectrum of Zn₂", Chemical Physics Letters 173, 282-284.
• W. Kedzierski, J. Supronowicz, J.B. Atkinson, and L. Krause, 1990. "Laser-induced fluorescence and excitation spectra of the ZnH molecule", Can. J. Phys. 68, 526-530.
• E. Hegazi, J. Supronowicz, J.B. Atkinson, and L. Krause, 1990. "Laser-induced fluorescence from the F0^- state of the HgZn excimer", Phys. Rev. A 42, 2745-2750.
• E. Hegazi, J. Supronowicz, J.B. Atkinson, and L. Krause, 1990. "Predissociation and pooling effects in the laser-induced fluorescence spectrum of the HgZn excimer", Phys. Rev. A 42, 2741-2744.
• E. Hegazi, J. Supronowicz, J.B. Atkinson, and L. Krause, 1990. "Laser-induced fluorescence spectra of the HgZn excimer: Transitions involving the E0^-, A1, A0^-, and B0^- states", Phys. Rev. A 42, 2734-2740.
• E. Hegazi, J. Supronowicz, G. Chambaud, J.B. Atkinson, W.E. Baylis, and L. Krause, 1989. "Laser-Induced Fluorescence from the E1 and F1 states of the HgZn Excimer", Phys. Rev. A 40, 6293-6299.
• W. Kedzierski, J.B. Atkinson, and L. Krause, 1989. "Laser-induced fluorescence of the Zn₂ excimer", Optics Letters 14, 607-608.
• J. Supronowicz, E. Hegazi, J.B. Atkinson, and L. Krause, 1989. "Erratum: Laser-induced fluorescence from low-lying Σ and Π states of the HgZn excimer", Phys. Rev. A 39, 4892.
• R.W. Berends, W. Kedzierski, A.G. McConkey, J.B. Atkinson, and L. Krause, 1989. "Quenching of 5²P Potassium Atoms by Collisions with H₂, N₂, and CH₄", J. Phys. B 22, L165-L169.
• T.R. Mallory, W. Kedzierski, J.B. Atkinson, and L. Krause, 1988. "9²D fine-structure mixing in rubidium by collisions with ground state Rb and noble-gas atoms", Phys. Rev. A 38, 5917-5920.
• R.W. Berends, W. Kedzierski, J.B. Atkinson, and L. Krause, 1988. "The radiative lifetimes of the potassium 5P, 6P and 7P states", Spectrochim. Acta 43B, 1069-1073.
• W. Kedzierski, R.W. Berends, J.B. Atkinson, and L. Krause, 1988. "A Fizeau wavemeter with single-mode optical fibre coupling", J. Phys. E 21, 796-798.
• R.J. Niefer and J.B. Atkinson, 1988. "The design of achromatic prism beam expanders for pulsed dye lasers", Optics Communications 67, 139-143.
• J. Supronowicz, E. Hegazi, J.B. Atkinson, and L. Krause, 1988. "Laser-induced fluorescence from low-lying Σ and Π states of the HgZn excimer", Phys. Rev. A 37, 3818-3824.
• J. Supronowicz, E. Hegazi, G. Chambaud, J.B. Atkinson, W.E. Baylis and L. Krause, 1988. "Laser spectroscopy of the HgZn excimer", Phys. Rev. A 37, 295-298.
• S.W. Kim, R.J. Niefer, J.B. Atkinson and L. Krause, 1987. "Effects of alkali-chlorides on the performance of the double-pulsed CuCl laser", Optics Communications 63, 269- 274.
• R.J. Niefer, J. Supronowicz, J.B. Atkinson and L. Krause, 1987. "Laser-induced fluorescence from the H, I, and J states of Hg₂", Phys. Rev. A 35, 4629-4638.
• R.J. Niefer, M. Darrach, J.B. Atkinson and L. Krause, 1987. "Fine-structure mixing of Hg 6s6d states by collisions with ground-state Hg and Ar atoms and N₂ molecules", J. Phys. B 20, 531-540.
• R.J. Niefer, J.B. Atkinson and L. Krause, 1986. "Internal attenuation of laser radiation in the CuCl laser", Optics Communications 60, 393-395.
• M. Darrach, R.J. Niefer, J.B. Atkinson and L. Krause, 1986. "Quenching of 6s6d and 6s7d Hg atoms by Hg* - Hg, Hg* - Ar and Hg* - N₂ collisions", J. Quant. Spect. Rad. Trans. 36, 483-490.
• J. Supronowicz, R.J. Niefer, J.B. Atkinson and L. Krause, 1986. "Improved analysis of the G0_u⁺ ← A0_g⁺ LIF band of Hg₂", J. Phys. B 19, L717-L721.
• R.J. Niefer, J. Supronowicz, J.B. Atkinson and L. Krause, 1986. "Laser-induced fluorescence spectroscopy of the Hg₃ excimer", Phys. Rev. A 34, 2483-2485.
• R.J. Niefer, J. Supronowicz, J.B. Atkinson and L. Krause, 1986. "Laser-induced fluorescence of Hg₂ Hl_u excimer molecules", Phys. Rev. A 34, 1137-1142.
• J. Supronowicz, R.J. Niefer, J.B. Atkinson and L. Krause , 1986. "Laser-induced fluorescence spectrum arising from G0_u⁺ - X0_g⁺  bound-free transitions in Hg₂", J. Phys. B 19, 1153-1164.
• D.J. Hart and J.B. Atkinson, 1986. "Lifetimes of some excited S and D states of potassium", J. Phys. B 19, 43-49.
• D.H. Giers, J.B. Atkinson and L. Krause, 1985. "Cross-sections for quenching of Pb 6p7s ³P atoms by collisions with CH₄, CO and CO₂ molecules", Can. J. Phys. 63, 1110- 1111.
• J. Supronowicz, J.B. Atkinson and L. Krause, 1985. "6²D fine-structure mixing in rubidium induced in collisions with ground-state Rb and noble gas atoms, and N₂ molecules", Phys. Rev. A 31, 2691-2694.
• D.H. Giers, J.B. Atkinson and L. Krause, 1984. "A study of radiative and collisional decay of Pb ³P atoms by time-resolved laser spectroscopy", Can. J. Phys. 62, 1616-1621.
• J. Supronowicz, J.B. Atkinson and L. Krause, 1984. "Fine-structure mixing in 7²D and 8²D Rb atoms, induced in collisions with ground-state atoms and molecules", Phys. Rev. A 30, 112-118.
• W.S. Neil and J.B. Atkinson, 1984. "Lifetimes of some excited S and D states of CsI", J. Phys. B 17, 693-700.
• R.J. Niefer, J.B. Atkinson and L. Krause, 1983. "Vibrational structure of some Hg₂ fluorescent bands", J. Phys. B 16, 3767-3773.
• R.J. Niefer, J.B. Atkinson and L. Krause, 1983. "Time-resolved laser spectroscopy of excited Hg₂ molecules", J. Phys. B. 16, 3531-3541.
• J. Wolnikowski, J.B. Atkinson, J. Supronowicz and L. Krause, 1982. "7²D_3/2 - 7²D_5/2 excitation transfer in rubidium induced in collisions with ground-state Rb and noble gas atoms", Phys. Rev. A 25, 2622-2628.
• J.B. Atkinson, J. Becker and W. Demtröder, 1982. "Hyperfine structure of the 625 nm band in the a³Π_u ← X¹Σ_g transitions of Na₂", Chem. Phys. Letts. 87, 128-133.
• J.B. Atkinson, J. Becker and W. Demtröder, 1982. "Experimental observation of the a³Π_u state of Na₂", Chem. Phys. Letts. 87, 92-97.
• M. Glodz, J.B. Atkinson and L. Krause, 1981. "8²D_3/2 - 8²D_5/2 excitation transfer in rubidium induced in collisions with ground-state Rb atoms", Can. J. Phys. 59, 548-554.
• J.B. Atkinson, 1977. "Lifetime determinations and their errors using pulsed dye lasers", J. Phys. E 10, 482-484.
• P.W. Pace and J.B. Atkinson, 1976. "A simple high-resolution laser mirror mount", Rev. Sci. Instr. 47, 1215-1216.
• P.W. Pace and J.B. Atkinson, 1975. "The lifetimes of the 7²P_1/2 and 7²P_3/2 states of Cesium", Can. J. Phys. 53, 937-941.
• P.W. Pace and J.B. Atkinson, 1974. "Transfer of electronic excitation between the 7²P_3/2 and 7²P_1/2 states of Cesium induced by collisions with Cesium atoms", Can. J. Phys. 52, 1641-1647.
• P.W. Pace and J.B. Atkinson, 1974. "Transfer of electronic excitation between the 6²P_3/2 and 6²P_1/2 states of Rubidium induced by collisions with Rubidium atoms", Can. J. Phys. 52, 1635-1640.
• P.W. Pace and J.B. Atkinson, 1974. "Sensitized fluorescence measurements using a pulsed dye laser", J. Phys. E 7, 556-560.
• J.B. Atkinson and P.W. Pace, 1973. "The spectral linewidth of a flash-lamp pumped dye laser", IEEE J.Quantum Electronics QE-9, 569-574.
• J.B. Atkinson and J.H. Sanders, 1968. "Laser action in Carbon and Nitrogen atoms following dissociative excitation transfer", J. Phys. B 1, 1171-1179.