Characteristics of tungsten-nickel point contact diodes used as laser harmonic-generator mixers

Properties of tungsten-nickel point contact diodes, when used as harmonic-generator mixers, were measured. The measured properties are those which will be useful to workers wishing to use these high-speed devices (faster than 10
^-14
s). Some of the properties measured were : the decrease in signal with mixing order; the detected signal as a function of laser frequency; and the power required to optimize the harmonic beat notes.