Essays about: "laser matlab"

Showing result 6 - 10 of 33 essays containing the words laser matlab.

  1. 6. Development of PSC detection tools using IRF lidar data

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Oriol Peláez Mercadal; [2020]
    Keywords : atmospheric science; polar stratospheric clouds; lidar; data analysis;

    Abstract : Polar stratospheric clouds (PSCs) play a crucial role in ozone depletion mechanisms. Thus, their observations are important to understand their formation processes and active effects towards the atmosphere. READ MORE

  3. 7. Physical modeling of optical modulators for optical link analysis : Optical link analysis in silicon photonics technologies

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Daniele Poggi; [2019]
    Keywords : Silicon photonics; physical modeling; ring modulator; electro-absorption modulator; optical modulator; optical link system; power consumption; Kiselfotonik; fysisk modellering; ringmodulator; elektroabsorptionsmodulator; optisk modulator; optiskt länksystem; strömförbrukning;

    Abstract : According to the 2018 Ethernet Roadmap projections, the requirements for high speed links keep increasing every year, always keeping an eye on the energy per bit consumption of the communication system. The Ethernet requirements are estimated to reach 1Tbps by 2022-2025. READ MORE

  4. 8. Deriving characteristics of thin cirrus clouds from observations with the IRF lidar

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Jennifer Edman; [2019]
    Keywords : cirrus; lidar; polar regions; optical thickness; clouds; ice clouds; BSR; backscatter coefficient;

    Abstract : Cirrus clouds play an important role in radiative transfer, and thus have impact on the energy balance of the atmosphere and the climate of the Earth. Furthermore, they occur often and cover large areas globally at any time. Nevertheless, cirrus clouds are poorly studied, especially in the polar regions. READ MORE

  5. 9. Investigating Optical-Field-Induced Currents in GaN using Ultrafast Lasers

    University essay from Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Author : Vidar Flodgren; [2019]
    Keywords : GaN; gallium nitride; nanoscience; material science; ultrafast lasers; Yb Laser; Pharos Laser; titanium sapphire laser; device fabrication; lift-off; gold etching; optical-field-induced currents; modelling; matlab; Physics and Astronomy;

    Abstract : This study saw the development of an experimental setup capable of generating and measuring optical-field-induced currents in a variety of nanodevices fabricated specifically for this project. Each device design features two metallic contacts, closely separated by about 5 micrometers, deposited onto a semiconductor or insulator substrate. READ MORE

  6. 10. Extracting masts of overhead supply and street lights from point cloud

    University essay from KTH/Skolan för arkitektur och samhällsbyggnad (ABE)

    Author : Yi Zhu; [2019]
    Keywords : Support Vector Machine; point cloud; laser scanning; automatic extraction;

    Abstract : Regular inspection and documentation for railway assets are necessary to monitor the status of the traffic environment. Mobile Laser Scanning (MLS) makes it possible to collect highly accurate spatial information of railway environments in the form of point cloud, and an automatic method to extract interested objects from the point cloud is needed to avoid too much manual work. READ MORE