Theoretical study of modulated absorption spectra: From quantum wire to quantum dot

R. B. Chen, Yan Ten Lu

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We studied the electro-absorption spectra for tetragonal systems under an electric field of intensity 50 kV/cm (or 30 kV/cm). The small lateral size (50 x 50 Å) allows the observance of one-dimensional characteristic (wire-like) Franz-Keldysh oscillation (FKO) for tetragons of length longer than 500 Å. The quantum confine effect dominates for shorter tetragons (dot-like). The wire-like to dot-like transition can be clearly demonstrated by examining the FKO characteristic peaks in the scaling Fourier transformation of modulation spectra. (C) 2000 Published by Elsevier Science B.V.

Original languageEnglish
Pages (from-to)417-423
Number of pages7
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume264
Issue number5
DOIs
Publication statusPublished - 2000 Jan 3

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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