X-ray targets for generating x-ray radiation from a waveguide
X-ray targets for generating x-ray radiation from a waveguide These innovative multilayer x-ray targets allow the generation of x-ray radiation based on direct emission of spontaneous x-rays into waveguide modes. Photons are generated by electron impact onto a structured anode target, which is formed as an x-ray waveguide or waveguide array. Challenge X-ray sources usually […]
Embedded flexible hollow fiber
Embedded flexible hollow fiber The technology describes a method to fabricate a virtually ideal wave guide for spectral broadening and high damage threshold. This is achieved by embedding a flexible hollow fiber at ideal straightness in a stretched stat in a thermally conductive solid medium, combining high transmission and high robustness even when high laser […]
Preconnection element for the protection of hollow fibers
Preconnection element for the protection of hollow fibers This invention is a further development to the flexible hollow fiber for pulse compression which was also developed at the Institut für Nanophotonik Göttingen e.V. (see Ref.: MM-2010-LLG). When laser light is coupled into hollow fibers, the problem often arises that parts of the light distribution can […]
Superimposed CGHs on metals using laser ablation of diffractive pixels
Superimposed CGHs on metals using laser ablation of diffractive pixels A special interference process allows the fabrication of computer-generated holography (CGH) as carrier of information which can’t be recognized with the human eye. The CGHs consist of N * M pixels which, when illuminated with coherent light, generate an imagine with the same pixel dimensions […]
Figure correction of glass substrates
Figure correction of glass substrates Unintentional deformation of optical substrates is a common issue in optics technology. The mechanical stress in thin films can have a deleterious effect on the quality of the optical components by deforming the underlying substrate. This patent describes a figure correction method bases on stresses induced by irradiation of glass […]
STED principle for laser back ablation
STED principle for laser back ablation This innovative approach combines the two known methods of Laser Induced Backside Wet Etching (LIBWE) and Stimulated Emission Depletion (STED) to realize laser based material modifications below the diffraction limit. This is especially useful for precision laser modifications of transparent materials. Challenge Laser based material modifications can nowadays be […]
Flexible hollow fiber for pulse compressors
Flexible hollow fiber for pulse compressors A stretched flexible hollow fiber is proposed as a waveguide in high-energy pulse compressors. This approach leads to superior straightness virtually independent of the fiber length. It is particularly well suited for fibers with inner diameters much larger than the wavelength, where the main limitation for the fiber length […]
Diffractive marking of glass
Diffractive marking of glass This method provides a fast and efficient way for producing diffractive markings – by ablation of small amounts of material – on glass surfaces. The micro relief, which remains, is producing brilliant spectral colors, when illuminated. Challenge Laser marking of metals, plastics and ceramics is a well established technology for, as […]
Micro-structured black titania surfaces
Micro-structured black titania surfaces We present a new technology which leads to the development of surface micro structures and a black appearance of Ti containing, commercially available glasses by irradiation with an excimer laser (ArF laser with 193 nm wavelength and 20 ns pulse duration). The technology can be accomplished in a standard air environment […]
Computer-controlled system and method for guided sectioning and extraction of sample material
Computer-controlled system and method for guided sectioning and extraction of sample material The technology comprises a computer-controlled system and algorithms for guided sectioning and optimal extraction of the region of interest from a sample material. Challenge Histology is of central importance for diagnosis and treatment decisions in a variety of diseases. A reliable and precise […]