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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/4971

Title: High field effect on ultrafast pump-probe excitation of compound semiconductors
Authors: Iida, Masaru
Katayama, Shin'ichi
Keywords: Ultrafast kinetics
High electric field
Pump-probe method
Issue Date: 2002-03
Publisher: Elsevier
Magazine name: Physica B : Condensed Matter
Volume: 314
Number: 1-4
Start page: 288
End page: 292
DOI: 10.1016/S0921-4526(01)01422-3
Abstract: The pump–probe excitation of compound semiconductors in the presence of high electric fields is studied with a model of the non-interacting photo-excited electron–hole system theoretically. Coherent excitation of the interband polarization produces an oscillatory structure in the carrier density and the differential transmission spectrum (DTS) above the band gap. The DTS profile is altered by the effect of a high electric field on both the pump excitation and the probe excitation. Our analysis reveals that the pump excitation with relatively longer pulse (100 fs) induces the oscillatory structure in the DTS while the probe excitation with short pulse (20 fs) gives rise to a peak shift towards the lower energy side due to the field assisted generation. The oscillation period in the DTS depends on the electric field to the two-third power, which corresponds to the Franz–Keldysh oscillation.
Rights: NOTICE: This is the author’s version of a work accepted for publication by Elsevier. Changes resulting from the publishing process, including peer review, editing, corrections, structural formatting and other quality control mechanisms, may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Masaru Iida and Shin'ichi Katayama, Physica B : Condensed Matter, 314(1-4), 2002, 288-292, http://dx.doi.org/10.1016/S0921-4526(01)01422-3
URI: http://hdl.handle.net/10119/4971
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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