Phase-correlated nondirectional laser emission from the end facets of a ZnO nanowire.
We investigated the laser emission from individual ZnO nanowires and observed an interference pattern due to coherent laser emission from the wire end facets. Comparison with numerical simulations shows that the laser light is emitted nearly spherically from the wire ends. The energy spacing between sharp lasing modes scales with the inverse length of the nanowire; thus, laser emission peaks correspond to Fabry-Pérot modes of the nanowire cavity.
van Vugt
Lambert K
LK
Condensed Matter and Interfaces, Debye Institute, Utrecht University, P.O. Box 80 000, 3508 TA Utrecht, The Netherlands. L.K.vanVugt@phys.uu.nl
Rühle
Sven
S
Vanmaekelbergh
Daniël
D