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Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
Journal JoVE
Ingénierie
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Journal JoVE Ingénierie
Measurement of Coherence Decay in GaMnAs Using Femtosecond Four-wave Mixing
DOI:

15:58 min

December 03, 2013

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Chapitres

  • 00:00Titre
  • 03:19Overview of Optical Apparatus
  • 06:10Pulse Measurement and Optimization
  • 08:38Sample Preparation
  • 10:09Measurement of Four-wave Mixing Signal
  • 12:27Results: Interband Dephasing Times in GaMnAs
  • 15:16Conclusion

Summary

Traduction automatique

The technique of femtosecond four-wave mixing is described, including spectrally-resolved and time-resolved configurations. We illustrate the utility of this technique for the investigation of crucial physical properties in the III-V diluted magnetic semiconductors, afforded by its nonlinearity and high temporal resolution.

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