Coherent Light Emission From GaAs Junctions Hall, R. N. ; Fenner, G. E. ; Kingsley, J. D. ; Soltys, T. J. ; Carlson, R. O. Abstract Publication: Physical Review Letters Pub Date: November 1962 DOI: 10.1103/PhysRevLett.9.366 Bibcode: 1962PhRvL...9..366H