Sökning: "multi-pass"

Visar resultat 1 - 5 av 7 uppsatser innehållade ordet multi-pass.

  1. 1. Spectral broadening of 4 mJ femtosecond pulses using a bulk multi-pass cell

    Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

    Författare :Saga Westerberg; [2023]
    Nyckelord :Lasers; Ultrashort; Nonlinear Optics; femtosecond; Multi-Pass Cell; Spectral broadening; pulse post-compression; Self phase modulation; Physics and Astronomy;

    Sammanfattning : Nonlinear optical effects can be used for spectral broadening, which the basis of the field of post-compression of laser pulses. When the intensity of light becomes high enough the refractive index becomes intensity dependent, and as the intensity often varies both with position and time so does the refractive index. LÄS MER

  3. 2. A deep reinforcement learning approach to the problem of golf using an agent limited by human data

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Fredrik Omstedt; [2020]
    Nyckelord :;

    Sammanfattning : In the sport of golf, the use of statistics has become prominent as a way of understanding and improving golfers’ golf swings. Even though swing data is easily accessible thanks to a variety of technological tools, it is not always clear how to use this data, especially for amateur golfers. LÄS MER

  4. 3. Applying Coreference Resolution for Usage in Dialog Systems

    Master-uppsats, Uppsala universitet/Institutionen för lingvistik och filologi

    Författare :Gabi Rolih; [2018]
    Nyckelord :natural language processing; coreference resolution; dialog systems; human-computer interaction;

    Sammanfattning : Using references in language is a major part of communication, and understanding them is not a challenge for humans. Recent years have seen increased usage of dialog systems that interact with humans in natural language to assist them in various tasks, but even the most sophisticated systems still struggle with understanding references. LÄS MER

  5. 4. Towards the carrier-envelope phase stabilization of a16 TW 4.5 fs laser system

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Emil Thorin; [2018]
    Nyckelord :;

    Sammanfattning : In the last decades the scientific development has made it possible to produce pulses with durations below the femtosecond time scale (1 fs = 1015 s), reaching to attoseconds (1 as = 1018 s). This is the time scale of electronic motion inside atoms and molecules. LÄS MER

  7. 5. Development of optimized Raman Spectroscopy setup for species detection in flames

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Henrik Johansson; [2016]
    Nyckelord :multi-pass; Raman; spectroscopy; species concentration; flames; combustion; Stokes; high-power laser; Physics and Astronomy;

    Sammanfattning : A multi-pass Raman spectroscopy setup, consisting of a measuring cell built as a cavity, using two concave circular mirrors, has been constructed and optimized. As the light reflects between the mirrors, the Stokes Raman signal is enhanced with every pass through the cavity. LÄS MER