Technology Offers Optics / Laser
Refractive lenses of rolled and structured films for X-ray optical systems
The newly-invented X-ray lens allows the focusing of X-rays on a point focus of less than 10 µm diameter and also distinguishes itself through high transmissivity and low absorption losses. It is especially interesting for X-ray analysis processes for which a high radiation intensity is required since tenfold radiation intensities are achieved in the focus.
The lenses are easy to manufacture and thus cost-effective.
Simple splicing and reduced coupling losses when joining optical solid- and hollow-core fibers
Optical fibers are particularly well suited for long-distance data transmission, as the attenuation losses are significantly lower than e.g. when using copper conductors. Scientists at the University of Stuttgart have now developed a simple and flexible method of joining solid- and hollow-core fibers that is characterized by low coupling losses and easy and flexible handling. In particular, it is suitable for liquid-filled hollow-core fibers. The method enables a durable, low-loss connection of fibers of different diameters without the application of heat required.
Device for rotation of 3D samples in microscopy
Scientists at Aalen University have developed a device which allows the rotation of samples. It can be used in conjunction with a range of microscopy methods, including single-plane illumination microscopy (SPIM) and laser scanning microscopy. This enables scientists for the first time to observe 3D samples from all sides using conventional microscopes. Since the sample is kept in a fixed position relative to the microscope, the method opens up new possibilities for the 3D reconstruction of samples, for example in combination with single plane imaging.
Correction of angular errors in optical encoder readings prior to sensor signal generation
The purely optical compensation of errors in encoder readings allows for robust sensor design with alignment-free assembly of the encoder disc. Due to a diffractive compensation track the beam spot on the measuring track can be compensated prior to sensor signal generation.
Optical 3D storage for fast reading of large data volumes
Reading up to 100 superimposed layers in an optical storage volume simultaneously offers a very high data transfer rate such as is needed for example in databases or data storage. Modified DVDs can be used as data storage media.
Measuring moving phase objects using confocal transmission microscopy
Scientists at the University of Stuttgart developed a new process for confocal transmission microscopy, which permits measuring moving phase objects. The process is ideal for the determination of optical thickness and depth position of living cells or chromosomes. For transparent and opaque micro particles it is possible to determine the spatial distribution and the lateral dimensions quantitatively.
Laser optical spark plug sensor
The novel measurement system permits minimally invasive measurements of tracer LIF-signals by a combination of fibre and microoptical elements integrated into a fully functional spark plug. Thus e.g. fuel distribution, temperature or air-fuel ratio can be measured.