Uni-directionally blue emitting spiral-shaped micropillar laser diode

G. D. Chern, Hakan Engin Tureci, A. D. Stone, R. K. Chang, M. Kneissl, N. M. Johnson

Research output: Contribution to journalConference article


We demonstrate uui-directional emission near 400 nm from lasing InGaN/InGaN multiple quantum-well (MQW) spiral micropiliars. Reduction of the lasing threshold (to current densities as low as 4.6 kA/cm 2 when current-injected) and enhancement of uni-directionality occurs when the microcavity is selectively optically or electrically pumped near its boundary.

Original languageEnglish (US)
Pages (from-to)43-44
Number of pages2
JournalLEOS Summer Topical Meeting
StatePublished - Sep 29 2004
Externally publishedYes
Event2004 Digest of the LEOS Summer Topical Meetings - San Diego, CA, United States
Duration: Jul 28 2004Jul 30 2004

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Uni-directionally blue emitting spiral-shaped micropillar laser diode'. Together they form a unique fingerprint.

  • Cite this

    Chern, G. D., Tureci, H. E., Stone, A. D., Chang, R. K., Kneissl, M., & Johnson, N. M. (2004). Uni-directionally blue emitting spiral-shaped micropillar laser diode. LEOS Summer Topical Meeting, 43-44.