Spectra of Wideband Dipole Radiation Induced by the Photomagnetoelectric Response in Narrow Gap Semiconductors

• Authors: O. Kiprijanovič , E. Shatkovskis , L. Kiprijanovič
• Languages of publication: EN

Abstracts

EN

The frequency spectra of sign inverted photomagnetoelectric responses in narrow gap semiconductors InSb, InAs, and Cd_{0.2}Hg_{0.8}Te, excited by nanosecond laser light pulses, were used for calculation of induced electromagnetic radiation frequency spectra in dipole approximation. The parallelepiped shape sample was considered as capacitor-like point dipole. The known Fourier transform property was used in calculations. Features of double sign inverted signals formation and its spectra are considered and compared with experimental results. The radiation of pulses, having spectra in terahertz range when excited by picosecond laser pulse from capacitor-like radiators that demonstrate double sign inverted photoresponses, is expected.

Keywords

EN

42.65.Re; 71.55.Gs; 75.50.Pp

Discipline

• 71.55.Gs: II-VI semiconductors
• 42.65.Re: Ultrafast processes; optical pulse generation and pulse compression(for ultrafast spectroscopy, see 78.47.J-; for ultrafast magnetization dynamics, see 75.78.Jp)
• 75.50.Pp: Magnetic semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 4
• Pages: 761-767

Dates

published

2008-10

received

2008-02-28

(unknown)

2008-04-28

Contributors

author

O. Kiprijanovič

• Semiconductor Physics Institute, Goštauto 11, LT-01108 Vilnius, Lithuania

author

E. Shatkovskis

• Semiconductor Physics Institute, Goštauto 11, LT-01108 Vilnius, Lithuania

author

L. Kiprijanovič

• Faculty of Mathematics, Vilnius University, Naugarduko 24, LT-03225, Vilnius, Lithuania

References

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Identifiers

DOI

10.12693/APhysPolA.114.761