Essays about: "Ultraviolet"

Showing result 11 - 15 of 95 essays containing the word Ultraviolet.

1. 11. Focal Spot Optimization Using Spatial Light Modulation and a Phase Retrieval Algorithm

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

   Author : Robert Petersen; [2023]
   Keywords : Spatial Light Modulation; Phase Retrieval Algorithm; Focal Spot Optimization; Adaptive Optics; Wavefront Sensing; Lasers; Physics and Astronomy; Technology and Engineering;

   Abstract : Aberrations to the wavefront of a laser beam reduce the quality of the focal spot and are generally undesired. This project is aimed at determining the aberrations of laser beams by using a phase retrieval algorithm and to show that it is possible to correct the aberrations with a spatial light modulator to optimize the focal spot. READ MORE

3. 12. Impact of nanoparticle plasmons on photoluminescense and upconversion processes in ZnO

   University essay from Uppsala universitet/Solcellsteknik; Uppsala universitet/Fysikalisk kemi

   Author : Axel Gudmundsson; [2023]
   Keywords : Photoluminescence; Upconversion; Plasmons; ZnO;

   Abstract : The increasing prevalence of glass windows in modern buildings has raised the demand for solar control windows that possess climate-appropriate properties. Glass windows made of abundant and low-cost materials which can both decrease the heating energy consumption as well as enhance the light climate indoors would sufficiently meet the goals of economical yet uplifting buildings. READ MORE

4. 13. Simulations of the Tenuous Upper Atmospheres of Exoplanets

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

   Author : Lucian Spitzner; [2023]
   Keywords : astronomy; astrophyics; exoplanets; transmission spectroscopy; magnetic fields; atmospheres; ions; Physics and Astronomy;

   Abstract : Over the last decade, the interest in research on extraterrestrial planets has expanded dramatically. With the number of confirmed exoplanets having increased tenfold over the last ten years, we now know that many different types of exoplanets exist. READ MORE

5. 14. Effects of stratospheric wildfire smoke on ozone depleting substances and ozone levels in the northern midlatitudes

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

   Author : Christopher Grüner; [2023]
   Keywords : Physics and Astronomy;

   Abstract : The goal of this project was to examine whether there are correlations between recent wildfires in the northern hemisphere and stratospheric ozone anomalies in the midlatitudes following the creation of ozone depleting substances. To achieve this goal, data from the Aura satellite's Microwave Limb Sounder instrument was used and processed with self-written Python scripts. READ MORE

6. 15. Determining the alignment of Solar Orbiter instruments STIX and EUI during solar flares

   University essay from Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

   Author : Sofia Tynelius; [2022]
   Keywords : Solar flares; the Sun; STIX; EUI; alignment; pointing;

   Abstract : Solar Orbiter is a mission launched in 2020 that will take images closer than ever of the Sun. It has ten instruments on board, including The Spectrometer/Telescope for Imaging X-rays (STIX) and The Extreme Ultraviolet Imager (EUI). READ MORE