Physical Colloquium - summer term 2009

Thursday, April 23th 2009, NW1, H 3, 16 p.m., c.t.

Referent

Prof. Dr. Ralf B. Bergmann

Bremen's Institute for Applied Laser Technology (BIAS)

Topic

applied optic - key technologies for the 21st century

The Bremen Town Musicians in 3D

The town musicians of Bremen as an anaglyphic picture and video. To see the 3D-effect blue-red glasses are required, that are distributed in the inaugaral lecture.

Optic is a fundamental key technology for the just started century. Many modern products are only producable through the application of optical technologies. Their relevance is thereby not just reduced to common known products such as cameras or screens. They also play a decisive role in other realms e.g. the development of new material and methods of production, quality assurance or in the area of information technology  up to optimizing regenarative energy converters.

With the area of studies "applied optics" stresses the University of Bremen the significance of this key techonolgy, that has a long tradition at Bremen's Institute of Applied Laser Technology (BIAS) within the areas of  laser material processing amd optical metrology. Within the new administration of the institute at the BIAS the division "material processing and processing system", represented through a professorship from the faculty of Production Engeneering and the division "optical metrology and optoelectronic systems", represented thorugh a professorship from the faculty of phsics and electrical engineering are working close together.

The lecture focusses on current topics and the future alignment in the realm of "optical metrology and optoelectronic systems". In the course of this principles of the coherent and incoherent metrology will be eludicated and applied to the metering of objects within the scale of meters to sub-milimetes. The importance of the optical metronomy will therefore be exemplary demonstrated.

In the area of non-destructive testing for qualitiy assurance, especially in the construction of aircrafts, the BIAS is leading with the method of laser ultrasonic testing and also developes further methods of the scherografie. The use opotoelectronical components such as the application of territorial light modulators within the scherografie, allows a compact, solid and flexible construction of measuring systems. In addition territorial light modulators open up an interesting field of apllication for the realisation of imaging systems especially in the so called "Augmented Reality."

For the realization of the shown above developments diffractive optical elements are required, by which light in a far more flexible method as e.g. by conventionallens optics can be influenced. Since those elements contain structural sizes that are far smaller as the visible vawelenght of light, a nano-structure-laboratory for the production of such elements will be build at the BIAS.

The implementation of the presented concepts creates the fundament at the BIAS for sustainable optic design and simulation developments and enables essential contributions for the further development of photonic technologies.