Microspectroscopic studies of CdSe single quantum well lasers

D. M. Bagnall, P. J. Wright, B. Cockayne, K. P. O'Donnell

Research output: Contribution to journalConference articlepeer-review


A series of single quantum well CdSe/ZnSe lasers have been grown by MOVPE. Whereas standard spectral integration shows no pronounced mode structure, video spectroscopy allows the capture of laser emission from a single exciting pulse. This 'single shot lasing' is found to reveal mode structure. Furthermore, a typical laser bar is found to comprise of a series of independent 'microlasers' interspersed with inactive regions. Using a microscope in the excitation path of our apparatus allows us to selectively excite individual 'microlasers'. With these advances we hope to improve the accuracy with which fundamental parameters can be determined.

Original languageEnglish
Pages (from-to)239-242
Number of pages4
JournalMaterials Science Forum
Publication statusPublished - 1 Jan 1995
EventProceedings of the 3rd European Workshop on II-VI Compounds - Linz, Austria
Duration: 26 Sept 199428 Sept 1994


  • quantum well lasers
  • epitaxial growth
  • metallorganic vapor phase epitaxy
  • microscopes
  • monolayers
  • pulsed laser applications
  • semiconducting cadmium compounds
  • semiconducting gallium arsenide
  • semiconductor device structures
  • semiconductor lasers
  • spectroscopy


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