Search for dissertations about: "3 pl"

Showing result 1 - 5 of 45 swedish dissertations containing the words 3 pl.

  1. 1. Development of 1.3-μm GaAs-based vertical-cavity surface-emitting lasers

    Author : Petrus Sundgren; Mattias Hammar; Harri Lipsanen; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Physics; Fysik; Physics; Fysik;

    Abstract : Long-wavelength vertical-cavity surface-emitting lasers (VCSELs) are desirable as low-cost sources for optical metropolitan-area and access networks. In the development of 1.3-µm VCSELs, most attention today is given to monolithic GaAs-based solutions, although no established active material exists in this wavelength region. READ MORE

  2. 2. High performance materials and processing technology for uncooled 1.3 μm laser diodes

    Author : Roberta Campi; Gunnar Landgren; Abdallah Ougazzaden; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; MOCVD; InGaAsP; AlGaInAsP; AlGaInAs; In-situ etching; TBCI; Semiconductor physics; Halvledarfysik;

    Abstract : This thesis investigates different material systems and processing technology for high temperature compatible laser diodes used in volume applications within the 1.3-μm telecom wavelength window. READ MORE

  3. 3. Epitaxial growth optimization for 1.3-um InGaAs/GaAs Vertical-Cavity Surface-Emitting lasers

    Author : Zhenzhong Zhang; Mattias Hammar; Nicolae Chitica; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; VCSEL MOVPE InGaAs GaAs quantum wells; Semiconductor physics; Halvledarfysik;

    Abstract : Long-wavelength (1.3-μm) vertical-cavity surface-emitting lasers (VCSELs) are of great interest as low-cost, high performance light sources for fiber-optic metro and access networks. During recent years the main development effort in this field has been directed towards all epitaxial GaAs-based structures by employing novel active materials. READ MORE

  4. 4. Sound production in odontocetes, with emphasis on the harbour porpoise, Phocoena phocoena

    Author : Mats Amundin; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 5. Photoluminescence Studies of Single Quantum Dots

    Author : Nikolay Panev; Fasta tillståndets fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Stranski-Krastanow; photoluminescence; laser spectroscopy; antibunching; random telegraph noise; blinking; Physics; Fysik; Fysicumarkivet A:2004:Panev; solid immersion lens; quantum dots; low-dimensional structures;

    Abstract : This thesis presents photoluminescence (PL) spectroscopy studies of single III-V semiconductor quantum dots (QDs). The electronic properties of the QDs, as well as, the dynamics of the processes taking part inside and in the surroundings of the QDs have been studied by single quantum dot photoluminescence spectroscopy, time resolved spectroscopy, and correlation spectroscopy. READ MORE