ETH chemists have developed a tiny, high-performance oxygen sensor that fulfils a wide range of performance criteria. The main innovation is that the sensor works in a similar way to the light ...

Measuring blood oxygen levels on the Apple Watch has been a staple of its health monitoring experience since it arrived. Yet, an ongoing patent dispute in the US has complicated matters over the last ...

U.S. Geological Survey, Water Mission Area, Scientist Emeritus, Lakewood, Colorado 80225, United States Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 ...

Abstract: We demonstrate the first real-time TFDMA coherent PON system with single-DAC and single-ADC ONUs, which can support up to 256 end users, and peak line rates of 100/200 Gb/s in the ...