Picosecond scale dynamics of excitons in CdTe-based quantum wells and quantum dots

A. Golnik; A. Trajnerowicz; T. Kazimierczuk; P. Kossacki

doi:10.1117/12.809206

6 February 2009 Picosecond scale dynamics of excitons in CdTe-based quantum wells and quantum dots

A. Golnik, A. Trajnerowicz, T. Kazimierczuk, P. Kossacki

Proceedings Volume 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII; 721414 (2009) https://doi.org/10.1117/12.809206
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

The pump-probe technique was used to study the reflectance of CdTe based quantum wells. The energy of a pump beam was scanned across excitonic resonances. The observed dynamics for both the energetic position and oscillator strength of excitonic lines is caused by the changes of the population of charge carriers as well as by the spin dependent interactions. The polarization resolved resonance technique was applied to the system of single CdTe - based quantum dots. Observation of linear to circular polarization conversion for pair of the adjacent, anisotropic dots allowed determining the time of excitation transfer between them.

Citation Download Citation

A. Golnik, A. Trajnerowicz, T. Kazimierczuk, and P. Kossacki "Picosecond scale dynamics of excitons in CdTe-based quantum wells and quantum dots", Proc. SPIE 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, 721414 (6 February 2009); https://doi.org/10.1117/12.809206

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