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Invited Talk Hall ICM - Internationales Congress Center München SPIE Optical Metrology > Modeling Aspects in Optical Metrology VII > Interferometry I
14:00-14:30 h | ICM - Internationales Congress Center München ICM Room 12b
Subjects: Optical Measurement Systems / Optical Metrology
Chairman: Bernd Bodermann (, Physikalisch-Technische Bundesanstalt)
Type: Invited Talk
Abstract: Within the last 25 years a number of models were conceptualized that allow a credible assumption that a solar system might exist several light years away on the basis of the dependence of the detected radiation on space and time in the vicinity of the Earth. We proposed a novel optical technique of planet detection incorporating a rotating rotational shearing interferometer . We are setting up a solar system simulator using two laser beams with a known degree of misalignment. Using rotationally shearing interferometry in laboratory we were able to detect and interpret fringes corresponding to a simulated solar system at 1 parsec. We are currently designing an improved detection instrumental layout with a limiting aperture larger than the earlier one of 2 cm. We are interested in seeing more distant stars to examine them for the presence of a potential invisible companion. To achieve this goal, we are performing system-level simulations to determine the degree of misalignment between two collimated laser beams that simulate radiation originating at the star and the planet, as point sources at infinity. This modeling will result in the identification of key parameters of the rotational shearing interferometer system, in particular the aperture of the dove prism, a critical component of a rotationally shearing interferometer. 1. M. S. Scholl, “Signal detection by an extra-solar-system planet detected by a rotating rotationally-shearing interferometer,” JOSA A 13(7), 1584 (1996). http://doi.org/10.1364/JOSAA.13.001584