Sökning: "near-infrared lasers"
Visar resultat 1 - 5 av 25 avhandlingar innehållade orden near-infrared lasers.
1. Near-infrared gas analysis spectroscopy systems with semiconductor lasers
Sammanfattning : .... LÄS MER
2. On diode-pumped solid-state lasers
Sammanfattning : The research that is presented in this thesis can be divided into two major parts. The first part concerns longitudinally pumped, bulk Er-Yb lasers. In these lasers, the main limitation is the thermal shortcomings of the phosphate glass host material. LÄS MER
3. Elements of AlGaN-Based Light Emitters
Sammanfattning : The III-nitrides have enabled a range of optoelectronic devices and associated applications of great industrial and societal importance. However, the full potential of the III-nitrides remains to be explored. LÄS MER
4. Towards Novel AlGaN-Based Light Emitters
Sammanfattning : The unique properties of the AlGaN semiconductors make them a suitable choice for optoelectronic devices at both short and long wavelengths, based on interband and intersubband transitions, respectively. What sets AlGaN apart from other wide-bandgap semiconductors is the possibility to obtain both p- and n-type conductivity as well as the direct bandgap. LÄS MER
5. High-Sensitivity High-Resolution Diode Laser Spectroscopy in the Near-Infrared Region
Sammanfattning : High-resolution spectroscopy measurements have been performed using near-infrared diode lasers. Special emphasis was placed upon high accuracy absorption lineshape measurements, which provide the basis for quantitative gas analysis. For this purpose, relevant spectral characteristics of the radiation emitted by diode lasers were studied. LÄS MER