Hans Georg Dehmelt

Hans Georg Dehmelt (born 9 September 1922) is a German -born American physicist, who was awarded Nobel Prize in Physics in 1989, for co-developing the ion trap technique with Wolfgang Paul, for which they shared one-half of the prize (the other half of the Prize in that year was awarded to Norman Foster Ramsey ). Their technique was used for high precision measurement of the electron g-factor.