Researchers have demonstrated the first prototype device that measures optical power delivered through optical fiber at nanowatt levels. Researchers at the National Institute of Standards and ...

Doha, Qatar: The Qatar General Organization for Standards and Metrology (QGOSM) announced the completion of the first measurement of absolute gravitational acceleration in Qatar. This measurement was ...

As photonics technology becomes increasingly sophisticated, optical measurements grow increasingly complex. To make reliable measurements, one must consider the characteristics and interactions of ...

The general importance of Φ f data in conjunction with often-encountered difficulties in reliably measuring such values motivated us to assess procedures and achievable uncertainties for the ...

It is crucial that mobile phones and other wireless devices -- so prevalent today -- have accurate and traceable measurements for electric fields and radiated power. Until recently, however, it wasn't ...

Modern semiconductor manufacturing technology has advanced rapidly. Because of this, measurement using non-contact displacement and transparent coating thickness has become very critical. Applications ...

The absolute internal quantum efficiency (IQE) of indium gallium nitride (InGaN) based blue light-emitting diodes (LEDs) at low temperatures is often assumed to be 100%. However, a new study from ...

The Korea Research Institute of Standards and Science has successfully developed a length measurement system that achieves a level of precision approaching the theoretical limit allowed by quantum ...

This is a preview. Log in through your library . Publisher Information The Royal Society is a self-governing Fellowship of many of the world's most distinguished scientists drawn from all areas of ...

The performance and physical properties of polymers are mainly dependent on the characteristics of polymer molecules themselves. The behavior of the materials is influenced by the molecular weight and ...

Highly accurate pressure sensors with long-term stability are necessary for fuel efficiency and reduction of harmful emissions. Increasingly demanding requirements of piezoresistive sensors include ...