| 1. |
- Kowalewski, J, et al.
(author)
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Extensive NMRD studies of Ni(II) salt solutions in water and water-glycerol mixtures
- 2008
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In: Journal of magnetic resonance. - : Elsevier BV. - 1090-7807 .- 1096-0856. ; 195, s. 103-111
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Journal article (peer-reviewed)abstract
- Aqueous solutions of simple nickel(II) salts are a classical test case for theories of the paramagnetic relaxation enhancement (PRE) and its dependence on the magnetic field (nuclear magnetic relaxation dispersion, NMRD), going back to late fifties. We present here new experimental data, extending the NMRD range up to 21 T (900 MHz). In addition to salt solutions in (acidified) water, we have also measured on solutions containing glycerol. The aqueous solution data do not show any significant changes compared to the earlier experiments. The interpretation, based on the general ("slow-motion") theory is also similar to the earlier work from our laboratory. The NMRD-data in mixed solvents are qualitatively different, indicating that the glycerol not only changes the solution viscosity, but may also enter the first coordination sphere of the metal ion, resulting in lower symmetry complexes, characterized by non-vanishing averaged zero-field splitting. This hypothesis is corroborated by molecular dynamics simulations. A strategy appropriate for interpreting the NMRD-data for the chemically complicated systems of this type is proposed.
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| 2. |
- Färdigh, Mathias A., 1974, et al.
(author)
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Kvällstidningsläsning på papper och digitalt
- 2009
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In: Svensk höst – Trettiotre kapitel om politik, medier och samhälle. - Göteborg : University of Gothenburg. - 9789189673168 ; , s. 355-368
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Book chapter (other academic/artistic)
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| 3. |
- Lindberg, H., et al.
(author)
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Mode locking a 1550 nm semiconductor disk laser by using a GaInNAs saturable absorber
- 2005
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In: Optics Letters. - 0146-9592 .- 1539-4794. ; 30:20, s. 2793-2795
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Journal article (peer-reviewed)abstract
- Passive mode locking of an optically pumped, InP-based, 1550 nm semiconductor disk laser by using a GaInNAs saturable absorber mirror is demonstrated. To reduce material heating and enable high-power operation, a 50 mu m thick diamond heat spreader is bonded to the surface of the gain chip. The laser operates at a repetition frequency of 2.97 GHz and emits near-transform-limited 3.2 ps pulses with an average output power of 120 mW.
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| 4. |
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