Abstract
In this paper we present experimental results on electron beam pumping of MBE and MOVPE lasers with CdZnSe single quantum wells. Laser emission in the green and blue occurs under pulsed excitation, with threshold power densities typically less than 2 kW/cm2 at low temperatures. Threshold curves obtained at different electron beam energies show that there is an optimum electron beam energy for wells at a given depth below the surface. This suggests that it is possible to match the electron beam energy to a given structure. Results are broadly consistent with Monte Carlo calculations of the depth dependence of the energy deposition of the electron beam.
Original language | English |
---|---|
Pages (from-to) | 618-622 |
Number of pages | 5 |
Journal | Journal of Crystal Growth |
Volume | 159 |
Issue number | 1-4 |
DOIs | |
Publication status | Published - 2 Feb 1996 |
Funding
We thank David Clark for putting together the electron beam pumping system and for laboratory assistance. We also thank Jim Barrie for building the electronics. The electron beam pumping system was funded by EPSRC/MOD grant GR/H04404.
Keywords
- quantum wells
- electron beams
- eletron beam pumping