Search

The article offers information on the chirped-mirror design developed by scientists in the Krausz group at Ludwig-Maximilians in Garching, Germany. Their innovation has a high-enough group-delay dispersion, used for purposes traditionally reserved for prisms or gratings including chirped-pulse amplifiers (CPA) or high-energy femtosecond-laser chirped-pulse oscillators (CPO).

The article reports on the application of hyperacuity by the researchers from Fraunhofer Institute for Applied Optics and Precision Engineering (IOF) and Friedrich Schiller University Jena in Germany. Hyperacuity is the natural phenomenon of seeing images with an accuracy exceeding that of the vision system's capabilities. The purpose of which is to gain access to highly accurate information beyond the resolution limit of an artificial compound eye.

The article provides information on the low-loss terahertz waveguide developed by researchers at Rheinisch-Westfälische Technische in Aachen, Germany out of their investigation on the two parallel rectangular dielectric slabs for the terahertz waveguide. An overview of the investigation made by the researchers about the advantages of split rectangular waveguides (SRW) integrated circuit is offered. The result shows the potential of SRW for terahertz optics.

The article describes enhancements to single-frequency laser systems made by scientists at Laser Zentrum Hannover and its spin-off company InnoLight in Germany. Their results led to the development of Nd:YAG laser systems used for the detection of gravitational waves and high-precision optical frequency standards.

Focuses on the existence of a black hole in the Milky Way according to astronomers in Garching, Germany. Observation of normal star orbiting the supermassive black hole at the center of the galaxy; Description of the images taken of the black hole using a Nasmyth adaptive optics system; Emission of energy by black holes from galaxies and quasars.

The article reports on the development of researchers on isotopic stimulated-emission-depletion (isoSTED) microscopy system that uses optical path to simplify the microscope's optical design in Germany. It notes that the focal-point size in STED microscopy is reduced resulting in improved imaging solution. It states that researchers devised a modified STED microscope to eliminate one beam path and align the optical design. Moreover, STED setup was able to resolve individual microtubules.

The article reports that researchers at the University of Stuttgart in Germany recently created a stacked splitring metamaterial for the optical wavelength range. This breakthrough may eventually lead to and reach beyond Duke University's work. Harald Giessen's research group at the University of Stuttgart designed and manufactured a three-dimensional optical infrared metamaterial with a fabrication process that involves planarization, lateral alignment and a layer-by-layer stacking approach.

Reports on German researchers' development of a fiber laser with optical output of 1.3 kW. Overall slope efficiency; Development of a novel multiclad fiber design; Stability of the laser output; Potential applications.

Reports that the German Armed Forces Research Establishment tests infrared aircraft-tracking technology at the Target Simulation Facility which consists of a 50-m-diameter concrete dome. Prime contractor of the facility; Development of a 2400-square-meter screen surface with a high directional reflectivity in the visible and infrared; Radius tolerance of the screen; Two-axis-motion target projection system

Reports on Vision Crystal Technology (VCT) researchers in Germany's practical use of the optical phenomenon called conical refraction. History of the development of conical refraction; Demonstration of internal and external conical refraction by VCT researchers using a fabricated synthetic crystal made from monoclinic double tungstate.

Reports on the development of a distributed-feedback (DFB) laser by researchers in Berlin, Germany. Reason why DFB was preferred over distributed-Bragg-reflector lasers; Graph showing the injection current of DFB.

Part I. Discusses a Germany project on femtosecond laser-technology and applications, supported by the German Federal Ministry of Education and Research. Potential of femtosecond lasers in manufacturing and medicine; COmponents of the project; Characterization of optical components and laser beams; Femtosecond measurement technology; Applications.

Reports on the development of a scanning positron microscope (SPM), which measure material defects with high resolution than electron or optical microscopy, by researchers at the Military University in Munich, Germany in September 2001. Applications of the SPM; Factors which affect the sensitivity of SPM; Processes involved in the development of SPM.

Demonstrates a single-method-atom which keeps atomic excitation low at Max Planck Institute for Quantum Optics in Garching, Germany. Reliance by the method on photon emission; Purpose of a grating to the right cavity; Contact information for more of the research.

Reports on the development of a pump-laser source by researchers in Germany as a method for obtaining inexpensive distributed feedback (DFB) thin-film based lasers in September 2001. Material which can control DFB wavelength range emission; Materials used in the project; Description of the processes involved in the development of the pump-laser.