Near-field imaging of the photocurrent on a patterned Au/GaAs interface with various wavelengths and bias S. Davy, M. Spajer, J. Almeida, R. Generosi, A. Cricenti, G. Faini and C. Coluzza Eur. Phys. J. AP, 5 3 (1999) 283-288 Published online: 15 March 1999 DOI: 10.1051/epjap:1999136