ZnO‐Microrod/p‐GaN Heterostructured Whispering‐Gallery‐Mode Microlaser Diodes

Abstract

The whispering gallery mode (WGM) lasing and microphotoluminescence from a hexagonal ZnO microrod are investigated. The hexagonal ZnO microrod is integrated on a p-GaN substrate to fabricate a heterostructured microlaser diode and the electrically pumped WGM lasing from the diode is realized.