Essays about: "ultraviolet absorption spectroscopy"

Found 5 essays containing the words ultraviolet absorption spectroscopy.

1. 1. 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

3. 2. Coumarin-based molecular probes : exploring the spectroscopic properties of complex mixtures and applications in colloid chemistry

   University essay from Linnéuniversitetet/Institutionen för kemi och biomedicin (KOB)

   Author : Shangqing Zhao; [2018]
   Keywords : warfarin; phenprocoumon; fluorescence spectroscopy; ultraviolet absorption spectroscopy; sodium dodecyl sulfate; surfactant; micelles; critical micelle concentration.;

   Abstract : Warfarin is a well-known anticoagulant drug that is used to prevent cardiovascular disease and blood coagulation such as thrombosis. In this study, the main aim was to investigate the photo physical characteristics of warfarin in the different molecular environments provided by sodium dodecyl sulfate (SDS) micelles by using ultraviolet absorption and fluorescence emission spectroscopic techniques. READ MORE

4. 3. X-Ray Photoelectron Spectroscopy of Metal & Metal-based Clusters: Au, Ag & Sn Cases.

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

   Author : Charles Wright; [2016]
   Keywords : Physics; Photoelectron; Spectroscopy; Cluster; Clusters; Gold; Silver; Tin; Synchrotron; X-Ray; Physics and Astronomy;

   Abstract : Clusters are particles which consist of a finite number (2 − 10 ^6−7 ) of atoms/molecules. For the work presented in this thesis free clusters have been produced in order to study their properties, free of interfering substrates, using photoelectron spectroscopy at the MAX-lab synchrotron facility in Lund, Sweden. READ MORE

5. 4. Study of the Optical Properties of sp2-Hybridized Boron Nitride

   University essay from Linköpings universitet/Tillämpad optik

   Author : Eduardo Antunez de Mayolo; [2014]
   Keywords : Spectroscopic ellipsometry; boron nitride; optical properties; materials characterization; III-V nitride semiconductors; cathodoluminescence; electron microscopy; Raman spectroscopy;

   Abstract : Nitride-based semiconductor materials make it possible to fabricate optoelectronic devices that operate in the whole electromagnetic range, since the band gaps of these compounds can be modified by doping. Among these materials, the sp2-hybridized boron nitride has properties that make it a potential candidate for integration in devices operating in the short-wavelength limit, under harsh environment conditions, due to the strength of the B-N bond. READ MORE

6. 5. High Harmonic Generation in Hollow Core Waveguides

   University essay from Lunds universitet/Atomfysik

   Author : Aaron Von Conta; [2012]
   Keywords : Phase-matching; High Harmonic Generation; HHG; Strong Field Approximation; SFA; Atomic Dipole Phase; Hollow Core Waveguides; Mode Propagation; Quantum Optics; Physics and Astronomy;

   Abstract : The main goal of this thesis is to initiate a set of experiments on high-order harmonic generation (HHG) in hollow core waveguides and to verify a higher conversion efficiency of HHG in waveguides compared to classical HHG schemes. High harmonics are in this context electromagnetic waves generated by focusing laser light into a dilute noble gas. READ MORE