Low-threshold electrically pumped vertical-cavity surface-emitting microlasers Jewell, J. L. ; Lee, Y. H. ; Walker, S. ; Scherer, A. ; Harbison, J. P. ; Florez, L. T. ; McCall, S. L. Abstract Publication: Electronics Letters Pub Date: August 1989 DOI: 10.1049/el:19890754 Bibcode: 1989ElL....25.1123J