Article ID Journal Published Year Pages File Type
9586175 Journal of Luminescence 2005 5 Pages PDF
Abstract
We use an experimental technique which allows to push the spectral resolution for the spectroscopy of solids in the sub-μeV regime. The core element of the experimental apparatus is a frequency-stabilized ring-dye laser, with a resolution of a few neV. By means of this technique, we study dynamic band gap shifts of ∼0.1 μeV in Cu2O. A model is proposed, which explains the experimental findings in terms of a photothermal bistability. Furthermore, the magnetic field dependence of the ortho- and paraexciton resonances is studied. This yields a precise determination of the exchange splitting between the para- and the orthoexciton levels.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
Authors
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