Essays about: "quantum cascade lasers"

Showing result 6 - 8 of 8 essays containing the words quantum cascade lasers.

  1. 6. A Measurement Platform for Characterization of Quantum Cascade Lasers

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Joakim Storck; [2016]
    Keywords : ;

    Abstract : A measurement platform has been built to characterize quantum cascade lasers regrown at KTH by measuring their spectral and electrical properties at room temperature. Since the current source used in this work had a compliance voltage which was too low to get above threshold, an adapter was made to put an external voltage source in series with it, raising the voltage over the laser. READ MORE

  3. 7. Characterization of single InP Nanowire-based Avalanche Photodetectors

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

    Author : Virginia Boix De La Cruz; [2016]
    Keywords : Photodetectors; Nanotechnology; Nanowires; IndiumPhosphide; Semiconductors; Physics and Astronomy;

    Abstract : Nanoscience is an emerging field of technology where the bottom-up fabrication techniques are utilized instead of the traditional top-down approaches for enhancing the performance of di erent optoelectronic devices. One such material is a semicon- ductor nanowire (NW) which holds immense potential in nanophotonic applications, such as solar cells, LEDs, lasers, sensors and photodetectors. READ MORE

  4. 8. Interface Roughness in Quantum Cascade Lasers

    University essay from Lunds universitet/Matematisk fysik

    Author : Kasparas Antanas Krivas; [2015]
    Keywords : Quantum Cascade Lasers; Interface Roughness; Modeling; Physics and Astronomy;

    Abstract : The quantum cascade laser (QCL) is a solid state device capable of generating the coherent mid-infrared and terahertz radiation. It is made from layers of different semiconducting materials. This layered structure gives rise to sub-bands, that are employed to achieve charge inversion necessary for lasing. READ MORE