Observation of gain-coupled distributed-feedback effects in V-groove InGaAs/AlGaAs quantum-wire arrays

Tae Geun Kim, Yasuhide Tsuji, Mutsuo Ogura

Research output: Contribution to journalArticle

Abstract

InGaAs/AlGaAs V-groove quantum-wire (QWR) arrays were fabricated by holographic lithography and one-time metalorganic chemical vapour deposition (MOCVD) to evaluate gain-coupled distributed-feedback (GC-DFB) effects in the InGaAs/AlGaAs materials. Using a finite-element method (FEM), mode analysis of the actual cross-sectional structure verified the modal gain of the QWR DFB structure, in which the gain was identified by a single peak at the Bragg wavelength of the grating. In addition, we observed a large gain anisotropy due to the gain/loss coupling in the DFB structure at a wavelength of 914 nm in the emission spectra from the 430 nm pitch QWR grating at room temperature.

Original languageEnglish
Pages (from-to)758-762
Number of pages5
JournalNanotechnology
Volume17
Issue number3
DOIs
Publication statusPublished - 2006 Feb 14

Fingerprint

V grooves
Semiconductor quantum wires
Anisotropy
quantum wires
aluminum gallium arsenides
Cross-Sectional Studies
Observation
Feedback
Temperature
Wavelength
Metallorganic chemical vapor deposition
Lithography
gratings
Finite element method
wavelengths
metalorganic chemical vapor deposition
finite element method
emission spectra
lithography
anisotropy

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Observation of gain-coupled distributed-feedback effects in V-groove InGaAs/AlGaAs quantum-wire arrays. / Kim, Tae Geun; Tsuji, Yasuhide; Ogura, Mutsuo.

In: Nanotechnology, Vol. 17, No. 3, 14.02.2006, p. 758-762.

Research output: Contribution to journalArticle

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