Browsing by Subject "Fluorescence"

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Browsing by Subject "Fluorescence"

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  • Ward, Jonathan M.; O'Shea, Danny G.; Shortt, Brian J.; Nic Chormaic, Síle (American Institute of Physics, 2007-07-20)
    We experimentally demonstrate optical bistability in Er3+-Yb3+ phosphate glass microspheres at 295 K. Bistability is associated with both Er3+ fluorescence and lasing behavior, and chromatic switching. The chromatic switching ...
  • Morrissey, Michael J.; Deasy, Kieran; Wu, Yuqiang; Chakrabarti, Shrabana; Nic Chormaic, Síle (American Institute of Physics, 2009-05-01)
    We present a novel technique for measuring the characteristics of a magneto-optical trap (MOT) for cold atoms by monitoring the spontaneous emission from trapped atoms coupled into the guided mode of a tapered optical ...
  • Russell, Laura; Gleeson, Daniel A.; Minogin, V. G. (Vladimir Georgievich), 1950-; Nic Chormaic, Síle (Institute of Physics, 2009-09)
    We analyse the lineshape of the fluorescence emitted by a cloud of optically excited cold atoms and coupled into an optical nanofibre. We examine the efficiency of the fluorescence coupling and describe the asymmetry of ...
  • Wu, Yuqiang; Ward, Jonathan M.; Nic Chormaic, Síle (American Institute of Physics, 2010-02)
    Upconversion lasing and fluorescence from active microspheres fabricated from a novel fluorozirconate, Er3+ doped glass, ZBNA (ZrF4-BaF2-NaF-AlF3), when pumped at 978 nm via a tapered optical fiber is demonstrated. An ...