Two-step versus one-step model of the interpolarization conversion and statistics of CdSe/ZnSe quantum dot elongations

Physical Review B - Condensed Matter and Materials Physics

Volumn 78, Issue 4, 2008, Pages

  Koudinov, A V ^a   Namozov, B R ^a   Kusrayev, Yu G ^a   Lee, S ^b   Dobrowolska, M ^c   Furdyna, J K ^c  

^a IOFFE INSTITUTE   (Russian Federation)

^b Korea University   (South Korea)

^c UNIVERSITY OF NOTRE DAME   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 47349132940     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.78.045309     Document Type: Article

References (34)

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32. This probably also agrees with the experimental results of Ref., which is, however, obscured by the fact that the authors of Ref. had not subtracted the built-in polarization from the measured signal. The variable phase of the second angular harmonic obtained in the CL configuration in Ref. apparently comes from the summation of two 2φ -contributions: the CL conversion itself and the built-in polarization. These two 2φ -harmonics are phase-shifted by 45°, and their amplitudes are controlled by unrelated physical mechanisms.
33. A. V. Platonov (private communication).
34. Specifically, if one succeeds in obtaining specimens comprised of similar QDs but with a more regular alignment, the conversion amplitude may be increased by almost one order of magnitude, making the results more convincing. One should also note that due to limitations of the experimental apparatus used in this study, we were not able to rotate the sample in the same arrangement as for application of the magnetic field, and that was why the procedure of separation of different signals and artifacts became less reliable.