Abstract
Vertical-cavity surface-emitting lasers1-5 are generating much interest because of their geometric suitability for forming two-dimensional arrays and their potential for achieving ultra-low thresholds. Here, we report on electrically driven vertical-cavity microlasers (µlasers) which have transverse dimensions of a few micrometers and active material lengths of a few hundred angstroms. The small volumes are a key factor in achieving low thresholds.
© 1990 Optical Society of America
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