Richard Anthony "Tony" Stradling (1937-2002), was a notable English semiconductor physicist, latterly professor of physics at Imperial College London.
He and his team of students used this effect to investigate a wide range of phenomena in the II-VI, III-V and elemental semiconductors.
He pioneered the use of infra-red gas lasers combined with high magnetic fields to carry out cyclotron resonance and impurity spectroscopy measurements.
Hydrostatic pressure was another tool for investigating band structure and impurity states in semiconductors that he exploited, particularly at St Andrews.
For example, his team's measurements of the effective masses of carriers in the III-V compounds are used to design lasers and fast transistors.