@article{2000-leinen-meschede-appl-phys-b-v70-p567, Abstract = {

We have characterized the spectroscopic properties of one of the first samples of blue-emitting diode lasers based on GaN. With such a laser diode operated inside a standard extended cavity arrangement we find a mode-hop free tuning range of more than 20 GHz and a linewidth of 10 MHz. Doppler-free spectroscopy on an indium atomic beam reveals the isotope shift between the two major indium isotopes as well as efficient optical pumping.

}, Author = {Leinen, H. AND Gläßner, D. AND Metcalf, H. AND Wynands, R. AND Haubrich, D. AND Meschede, D.}, Journal = {Appl. Phys. B}, Pages = {567}, Title = {{GaN blue diode lasers: a spectroscopist's view}}, Volume = {70}, Year = {2000} }