Physicists achieve major leap in precision and accuracy at extremely low light levels. Researchers at the Max Planck Institute of Quantum Optics (MPQ) have successfully developed a new technique for ...

Targeting applications such as emission spectroscopy and VUV spectrophotometry applications, the R7639 photomultiplier tube has a radiant sensitivity of 50 mA/W and a quantum efficiency of 40% at 155 ...