Spontaneous light emission from fractional-dimensional excitons |
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Authors: | Thilagam A. |
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Affiliation: | (1) Faculty of Science, Northern Territory University, Darwin, NT, 0909, Australia |
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Abstract: | We apply the concept of fractional-dimensional excitons to study the process of light emission in quantum confined systems. We focus on a single parameter , known as the degree of dimensionality and which is related to the exciton coherence volume. We compute rates of light emission due to free excitons in GaAs/AlxGa1-xAs quantum wells as functions of and link them to experimental observations. The rates are compared with those of quantum well excitons embedded in a microcavity. |
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Keywords: | exciton light microcavity |
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