Latest scientific news (in German only)

Optical atomic clocks and the Nobel Prize in Physics

News from the Annual Report 2004 (in German only)

Fundamentals of metrology

Counting atoms - with raw silicon from Russia

Fibre-supported near infrared femtosecond frequency comb achieves stability in continuous operation

Approaching an "optical lattice clock"

Interference of single X-ray photons

Primary atomic caesium clocks

Focus on Japan and China

Light amplification in spatial solitons

New measuring set-ups for diffuse reflection

Novel chemical imaging with phase-coherent supercontinua

Ultra-fast optical scanning oscilloscope for high-bitrate telecommunication systems

Metrology for economy

UV dosimetry as a new task

First photometry seminar of the Optics Division

Laser radiometry for UV and VUV lasers

Novel traceable multisensor system for ultraprecise form measurement

Expanded calibration possibility for large optical plane surfaces

New calibration structures for high-resolution microscopy

Improved quantitative measurements in dimensional microscopy

Time for Galileo

Wavelength standards for spectrometry

Optical coin test on the basis of spectral reflection properties

Metrology for society

Traceability of a transportable reference spectroradiometer to the PTB's primary irradiance standard

Novel calibration of large-area reference solar cells

Scatter radiation simulates excessive efficiency of X-ray image detectors

Alerting the general public with DCF77

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© Physikalisch-Technische Bundesanstalt Page created: 2005-03-10, last update: 2006-03-22, Yvonne Zimber