منابع مشابه
Photoelectron spectroscopy of negatively charged bismuth clusters: Bi-2, Bi-3, and Bi-4
We have recorded the 35 1 nm photoelectron spectra of Bi; , Bi; , and Bi; . The spectrum of Bi; shows transitions to at least seven electronic states of Bi, neutral, four of which are observed with vibrational resolution. Term energies, bond lengths, and vibrational frequencies are obtained for the anion ground state and for the first three excited states of Bi, . These results are compared to ...
متن کاملMode-locked thulium-bismuth codoped fiber laser using graphene saturable absorber in ring cavity.
We demonstrate mode locking of a thulium-bismuth codoped fiber laser (TBFL) operating at 1901.6 nm, using a graphene-based saturable absorber (SA). In this work, a single layer graphene is mechanically exfoliated using the scotch tape method and directly transferred onto the surface of a fiber pigtail to fabricate the SA. The obtained Raman spectrum characteristic indicates that the graphene on...
متن کاملCarbon nanotubes for ultrafast fibre lasers
Carbon nanotubes (CNTs) possess both remarkable optical properties and high potential for integration in various photonic devices. We overview, here, recent progress in CNT applications in fibre optics putting particular emphasis on fibre lasers. We discuss fabrication and characterisation of different CNTs, development of CNTbased saturable absorbers (CNT-SA), their integration and operation i...
متن کاملNew potassium bismuth thiophosphates including the modulated K(1.5)Bi(2.5)(PS4)(3).
The compounds K3Bi3(PS4)4 (I), K1.5Bi2.5(PS4)3 (II), and K9Bi(PS4)4 (III) were synthesized, and their properties are described. Red needles of I crystallize in the tetragonal spacegroup P4/ncc with a = 21.0116(8) A and c = 13.3454(10) A and have a three-dimensional Bi/P/S framework structure with large channels occupied by K+ ions. Deep-red plates of II crystallize in the monoclinic super space...
متن کاملMagnetic Excitations in Thulium
We have observed, for the first time, magnetic excitations in a single crystal of thulium, using inelastic neutron spectroscopy. In the ferrimagnetic phase three modes with energies around 4 meV, 8 meV and 15 meV were clearly seen. We have considered our results in terms of crystal field level schemes for thulium. The rare earth metal thulium (hcp, electronic configuration 4f12) exhibits a part...
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ژورنال
عنوان ژورنال: Journal of Phase Equilibria and Diffusion
سال: 2011
ISSN: 1547-7037,1863-7345
DOI: 10.1007/s11669-010-9839-9