Sökning: "ktp"
Visar resultat 1 - 5 av 29 avhandlingar innehållade ordet ktp.
1. Dopant inclusion and isomorphism of KTP : a nonlinear optical material
Sammanfattning : .... LÄS MER
2. Fabrication and characterization of periodically poled KTB and RB-doped KTB for applications in the visible and UV
Sammanfattning : This thesis deals with the fabrication and the characterization of periodically-poled crystals for use in lasers to generate visible and UV radiation by second-harmonic generation (SHG) through quasi-phasematching (QPM). Such lasers are of practical importance in many applications like high-density optical storage, biomedical instrumentation, colour printing, and for laser displays. LÄS MER
3. QPM Devices in KTA and RKTP
Sammanfattning : Even though KTiOPO4 (KTP) is considered to be one of the best nonlinear materials for quasi phase matched (QPM) frequency conversion in the visible and the near-infrared spectral regions, its use is often limited by poor material homogeneity, high ionic conductivity, a considerable linear absorption and photochromatic damage. On the other hand, the improved material homogeneity and the lower ionic conductivity of bulk Rb-doped KTP (RKTP) make this material an ideal alternative for fabrication of fine-pitch QPM gratings, while the arsenate isomorph KTiOAsO4 (KTA) promises a better performance in the green spectral region and adds the advantage of a wider transparency window in the infrared. LÄS MER
4. Spectral control of lasers and optical parametric oscillators with volume Bragg gratings
Sammanfattning : I den här avhandlingen visas hur lasrar och optiska parametriska oscillatorer (OPO:er) kan styras spektralt med hjälp av volymbraggitter. Volymbraggitter utgörs av ett periodiskt varierande brytningsindex som skrivits i ett fototermorefraktivt glas. LÄS MER
5. Diode-pumped Er-Yb lasers for eye-safe applications
Sammanfattning : .... LÄS MER