NowUniversity Professor at the Polytechnic University of New York,Professor Arnold
joined my group as a Research Scientist in the 1970’s.He is an excellent experimentalist and scientist, and played a
major role in improving the design and performance of the Millikan-Pope
apparatus for measuring the excitonic and electronic properties ofmicron-sizedconjugated
organic crystals.He also
carried outexperiments on
the caging of triplet excitons in small domains and thedevelopment of photophoretic spectroscopy.At Polytechnic University of NY he continued his
work on micron-sized systems with unique results.