Full text loading...
(Color online) SEM image of nanoribbons. The inset presents a typical EDX spectra for a composition (the Cu signal is from the SEM grid).
(Color online) XRD patterns of nanoribbons; composition calculated from the XRD data as described in the text is indicated.
(Color online) Photoluminescence spectra of nanoribbons excited by different power densities. The supralinear dependence of the PL intensity vs. input power density (left inset) and the appearance of sharp peaks confirm lasing with a threshold of .
(Color online) Lasing from NIR to UV from two ternary II-VI nanoribbons (spectra a–c) and (spectra d–f).
(Color online) Fine tunability of lasing via composition. Lasing in the first set of samples (left) changes by and in the second set (right). The PL characteristics below, close, and above the lasing threshold are shown using excitation power densities of 60, 155, and (45, 60, and ) for the first (second) set.
Article metrics loading...