J. Wu et al., CLEAVED CAVITY STIMULATED-EMISSION FROM AN OPTICALLY PUMPED CUBIC GANALGAN HETEROSTRUCTURE GROWN ON GAAS (100) SUBSTRATE/, Applied physics letters, 73(14), 1998, pp. 1931-1933
Cubic GaN/AlGaN double heterostructure was grown on semi-insulating Ga
As (100) substrate by metalorganic vapor phase epitaxy. Strong stimula
ted emission was observed from the cleaved edge of the optically pumpe
d cubic GaN/AlGaN heterostructure at 15 K. The cavity was formed simpl
y by cleaving the substrate. The stimulated emission was demonstrated
by the superlinear increase of the output intensity and the highly tra
nsverse electric polarized nature. The stimulated emission showed an o
bvious redshift compared with the spontaneous one. (C) 1998 American I
nstitute of Physics. [S0003-6951(98)01140-1].