A5092098465- Diamond and Carbon-based Materials Research
- Semiconductor materials and devices
- Metal and Thin Film Mechanics
- Nonlinear Optical Materials Studies
- Laser Material Processing Techniques
Leipzig University
2023-2024
A common technique for color center creation in wideband gap semiconductors employs ion implantation and a subsequent thermal annealing. In general, this annealing process is conducted an vacuum oven. Here, we exploit the based on femtosecond laser pulses. For that purpose, implant fluorine ions at 54 keV chlorine 74 diamond perform micrometer precise using focused pulses 800 ± (30) nm with different pulse numbers repetition rates. way, were able to create shallow spots centers of varying brightness.
In this study, we investigated the creation of mono crystalline diamond membranes for use in two-dimensional optical cavities. The method involves ion irradiation to create a buried layer damaged material that is removed leave free-standing top layer. Simulations were used determine optimal parameters irradiation, which tested experiments. Hydrogen ions found be species and long-term high-temperature annealing was beneficial reducing ion-induced damage membrane. resulting membranes, 300 nm...