Sökning: "Ljus 3"

Visar resultat 1 - 5 av 167 uppsatser innehållade orden Ljus 3.

  1. 1. Localized and extended states in finite-sized mosaic Wannier-Stark lattices

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Emrah Tortumlu; [2023]
    Nyckelord :Applied Physics; Condensed matter physics; quantum technology; quantum nanophotonics; localization; mobility edge; phase transition; Tillämpad Fysik; Kondenserade materiens fysik; kvantteknologi; kvantnanofotonik; lokalisering; fasövergång;

    Sammanfattning : Anderson localization occurs when an otherwise conductive solid becomes insulatingdue to a sufficiently large degree of disorder in the medium. The electron band energy(as a function of disorder) at which this transition between extended and localizedelectron states occur is called the mobility edge (ME) and is energy-dependent only in3-dimensional systems. LÄS MER

  3. 2. A cross-correlation analysis of a warm super-Neptune using transit spectroscopy

    Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Elias Önerud; [2023]
    Nyckelord :Cross-correlation; cross-correlation spectroscopy; cross-correlation analysis; super-Neptune; astronomy; astrophysics; WASP-107; WASP-107 b; CRIRES ; SysRem; exoplanet; transmission spectrum; transit;

    Sammanfattning : A study was made in order to deduce whether certain chemical species, namely water (H2O) and carbon monoxide (CO), are present in the atmosphere of the exoplanet WASP-107 b, which lies about 200 light-years away from Earth in the constellation Virgo. The project was carried out at Uppsala University at the Department of Physics and Astronomy. LÄS MER

  4. 3. Color Emotions without Blue Light : Effect of a Blue Light Filter on the Emotional Perception of Colors

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

    Författare :Maximilian Leefer van Leeuwen; [2023]
    Nyckelord :Emotional Response; Blue Light; Blue Light Filter; Color Constancy; Color Perception; Color Emotion;

    Sammanfattning : Blue light filters have become commonplace in modern technology. While there has been a substantial amount of research into their effects on sleep, there has been little into the effect on the media perceived through them. LÄS MER

  5. 4. 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

  7. 5. Tillväxt av parkslide (Reynoutria japonica Houtt.) vid varierande tillgång på vatten : En experimentell studie av sticklingar och rhizomer

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Elisabeth Lind; [2023]
    Nyckelord :Japanese Knotweed Reynoutria japonica water growth; Parkslide Reynoutria japonica vatten bevattning tillväxt;

    Sammanfattning : Invasiva främmande arter (IFA) har negativa effekter på biologisk mångfald och inhemska ekosystem. Parkslide (Reynoutria japonica Houtt.)  är en svårutrotad IFA som har fått stor spridning i delar av Europa, och även i södra och mellersta Sverige, framförallt i kustområden. LÄS MER