Optical Properties and Laser Applications of (InGa)As/(AlGa)As Self-Assembled Quantum Dots

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概要

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• We study the photoluminescence and laser properties of (InGa)As/(AlGa)As self-assembled quantum dots (QDs). By varying the Al content in the (AlGa)As matrix and/or stacking several QD layers, the room temperature dot luminescence is tuned over a wavelength range from 0.8 $\mu$m to 1.3 $\mu$m. In particular, by embedding the (InGa)As QD layer in a GaAs/AlGaAs quantum well, an high temperature light emission from the dots can be obtained (up to 500 K). We also study the properties of QD lasers and show that both cavity effects and thermal coupling between dots play an important role in determining the QD laser emission.

• INSTITUTE OF PURE AND APPLIED PHYSICSの論文
• 2001-03-30

著者

• Main Peter

  School Of Physics And Astronomy University Of Nottingham

• Henini Mohamed

  School Of Physics And Astronomy University Of Nottingham

• EAVES Laurence

  School of Physics and Astronomy, University of Nottingham

• HILL Geoffrey

  Department of Electronic and Electrical Engineering, University of Sheffield

• Patane Amalia

  School Of Physics And Astronomy University Of Nottingham

• Polimeni Antonio

  School Of Physics And Astronomy University Of Nottingham

• Levin Alexander

  School Of Physics And Astronomy University Of Nottingham

• Hill Geoffrey

  Department of Electronic and Electrical Engineering, University of Sheffield, Mappin Street, Sheffield S1 3JD, UK

• Henini Mohamed

  School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK

• Levin Alexander

  School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK

• Main Peter

  School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD, UK

関連論文

• Optical and Resonant Tunnelling Spectroscopy of Self-Assembled Quantum Dot Systems
• Multiple Gated InAs Dot Ensembles
• Magnetotunnelling and Photoluminescence Spectroscopy of Self-Assembled InAs Quantum Dots ( Quantum Dot Structures)
• Optical Properties and Laser Applications of (InGa)As/(AlGa)As Self-Assembled Quantum Dots
• Modification of the Quantum Hall Effect by the Charge State of a Nearby Quantum Dot Layer(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Theory of Resonant Tunneling through a Donor State
• Optical Properties and Laser Applications of (InGa)As/(AlGa)As Self-Assembled Quantum Dots

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