Electroluminescence, photoconductivity and lasing studies of quantum wire lasers with spatial resolution of 0.1 /spl mu/m

V-grooved quantum wire (QWR) lasers were studied by near-field optical microscopy with 0.1 /spl mu/m spatial resolution. We mapped the electroluminescence from the quantum structures and measured the lasing mode evolution. Localized photocurrent measurements show spectral features consistent with the QWR lateral confinement.