Back to the Basics
High-Temperature Superconductivity Magnesium Diboride Ferromagnetic Shape-Memory Materials Yttrium Iron Garnet (YIG)
Thin-Film Deposition
Laser-Ablation Technique Equipment Some Results Laser-beam shaping
Applications
Electronics Components Micromechanical Components Patterning of HTS Films Processing of Thin Films
See also
Project Publications Useful PLD Links Contact Us
TKK / Department of Applied Physics / Advanced Energy Systems / Laser Physics / Pulsed Laser Deposition
Thin Films for Component Applications
Pulsed laser deposition (PLD) is an efficient method to produce thin films by utilizing a technique called laser ablation. PLD is applicable to almost any material, in particular to compounds that are difficult or impossible to produce in thin-film form by other techniques. Examples of such materials include complex ceramic materials such as high-temperature superconductors and certain magnetic materials (e.g., yttrium iron garnet (YIG) and ferromagnetic shape-memory (FSM) alloy Ni-Mn-Ga).
High-temperature superconductors make it possible to realize, e.g., sensitive thermal-radiation detectors (bolometers) and microwave filters, ferrimagnetic YIG has applications in integrated atom optics, and FSM materials, for their part, are potential candidates for different actuator applications - valves, pumps, positioning devices, mechanical couplers, and sensors. At the moment, we focus on the deposition of high-quality Ni-Mn-Ga films with the goal of realizing ferromagnetic shape-memory structures for micromechanical components and even microscopic machines. Another active research area is the development of an antenna-coupled bolometer, which would have a wide range of applications, e.g., in fusion-plasma diagnostics, in surveillance, and in metrology. The principal material of the bolometer project isthe high-temperature superconductor YBa2Cu3O7-d (YBCO), but depending on the results we will obtain with MgB2, we may later switch to this material.
The units at TKK participating in the PLD research are:
- Advanced Energy Systems at the Department of Applied Physics
- Optics and Molecular Materials at the Department of Applied Physics
- Department of Biomedical Engineering and Computational Science
- Department of Chemistry
- Department of Materials Science and Engineering
Our main co-operators and collaborators are:
This page is maintained by Antti Hakola.
Updated 10.11.2008
URL: http://www.tkk.fi/Units/AES/projects/prlaser/pld.htm