Showing papers on "Quantum well published in 1969"
125 citations
TL;DR: In this paper, it was shown that the nonuniformity of excitation produced in circular cross-section solid-state lasers due to the focusing of pump power leads to a coupling of certain modes and reduction in their threshold of oscillation.
Abstract: It is shown that the nonuniformity of excitation produced in circular cross-section solid-state lasers due to the focusing of pump power leads to a coupling of certain modes and reduction in their threshold of oscillation. These modes correspond in plane-wave representation to simple closed paths in the cavity. The off-axial radiation observed in the form of rings by Collins and Giordmaine and others is explained on the basis of the theory.
2 citations
2 citations
TL;DR: In this paper, electron-beam-pumped dislocation-free GaAs lasers were used to study the nonuniform emission characteristics of dislocation free GaAs and showed relatively few dislocations present in the as-grown material.
Abstract: Filamentary and other nonuniform emission characteristics have been observed from electron-beam-pumped dislocation-free GaAs lasers. X-ray topographs taken before and after bombardment showed relatively few dislocations present in the as-grown material and no dislocation introduced at the power levels used for electron-beam excitation.
2 citations
15 Nov 1969
TL;DR: Continuous wave chemical laser operation in carbon dioxide pumped by vibrational energy released from DF and HF molecular formation is described in this article, where the authors present a model for continuous wave laser operation.
Abstract: Continuous wave chemical laser operation in carbon dioxide pumped by vibrational energy released from DF and HF molecular formation
1 citations