Ultrafast electric field induced nonlinear response in ZnSe/ZnSeS superlattices
We report the observation of an ultrafast optical nonlinearity in ZnSe/ZnSeS superlattices which arises from the generation of an internal field due to charge separation caused by preferential hole trapping. The absorption recovery is extremely fast, ∼ 650 fs, being due to the subsequent localisatio...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
1996
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| Summary: | We report the observation of an ultrafast optical nonlinearity in ZnSe/ZnSeS superlattices which arises from the generation of an internal field due to charge separation caused by preferential hole trapping. The absorption recovery is extremely fast, ∼ 650 fs, being due to the subsequent localisation of electrons. |
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