OPTICAL 2ND-HARMONIC GENERATION STUDIES OF THE NATURE OF THE GAAS (100) SURFACE IN THE AIR - REPLY

In response to comments made by Yamada and Kimura, we present correcte d data for the second harmonic generation from GaAs (100) surface in a ir, for the polarization conditions, p-in/p-out, rectifying a minor er ror made in an earlier publication. In addition, we discuss the assert ion by Yamada and Kimura that rotational anisotropy in the measured re sponses is due solely to the presence of surface steps, noting that su rface oxides also influence this response dramatically.