-participate as Research Fellow in the field of optical design in the European Research Program ADOPSYS (Advanced Optical SYStem Design), which is part the Marie Curie ITN
-research topic as described below
-design a new family of diffractive beam control elements in the short-wavelength region
-study applications for such near field diffractive elements in the vicinity of LED chips
-publish your research results in pre-reviewed scientific journals
-present your work at international conferences
-benefit of an extensive training program within the ADOPSYS program
-work five months at Friedrich Schiller University Jena in Germany and three months at OSRAM, Germany
-successfully completed studies in photonics/optics, physics or mathematics
-very good knowledge in photonics/optics, especially diffractive and subwavelength optics
-very good English skills
-profound analytical skills
-maximum work experience in Finland: 1 year (condition of the program)
The general research topic is optical design of energy efficient systems.
The research focuses on energy-efficient diffractive and polarization optics for DUV, EUV and X-ray regimes, where excimer lasers and free-electron lasers (FELs) operate and are important candidates for, e.g., future projection lithography and diffractive imaging systems. In these short-wavelength regimes, diffractive elements must be nanostructures, with feature sizes 10-100 nm. Moreover, the optical properties of materials change substantially compared to the visible region, which has a significant effect in the design, material choices, and the structure of the elements. Additional challenges are caused by the partial spatial, temporal, and spectral coherence properties that are rather well known for excimer lasers and have recently been characterized also for FELs in the sub-10-nm regime.
Recently, at UEF, a metallic polarizing element based on surface plasmon resonances has been designed and successfully demonstrated for the 193 nm excimer lasers. Investigation of plasmonic resonances and their applicability in design of polarization optics at shorter (vacuum UV) wavelengths such as 157 nm and beyond are among the first goals. At the EUV/Xray regime, the properties of metals change radically, which potentially allows the use of membrane-type metallic structures as nearly phase-only diffractive components.
Diffractive beam control elements in the short-wavelength region are expected to be applicable to the visible spectrum (at least to its short wavelength, i.e. blue part), e.g. for shaping the angular intensity distribution of light emitted by LED chips.
Institute of Photonics, UEF, is the leading university on photonics education and research in Finland. It is the only university in Finland offering international (in English) MSc and PhD programs in photonics. Its research consists of various topics ranging from fundamental properties of light to large scale fabrication of optical nanostructures. Strong theoretical background combined with applied research covers areas like coherence theory, micro- and nanophotonics, biophotonics and optical materials research. The Institute also collaborates closely with Finnish and foreign industry.
If you are interested in this position, please send us your application indicating your earliest possible entry date. Instructions for applying: http://www.uef.fi/fi/photonics/application-process-phd
Nr of positions available : 1
Physics - Optics
Early stage researcher or 0-4 yrs (Post graduate)
First Stage Researcher (R1)
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Institute of Photonics, University of Eastern Finland
P.O.Box 111, Joensuu, Finland
FP7/People - Marie Curie Actions
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