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HUBERT HEFFNER
1924-1975
BY JOHN R. WHINNERY
H L'BERT HEFFNER, Professor of Applied Physics at Stanford Uni-
versity, died on April 1, 1975. He `` as a brilliant researcher,
an inspiring teacher, and a tireless contributor to the Academy,
to the U.S. Government, and to his profession.
Dr. Heffner ~s as born in Lincolnton, North Carolina, on Decem-
ber 26, 1924. He receis ed his Bachelor of Science degree in physics
in 1947, his N1aster's degree in electrical engineering in 1949, and
his Doctor of Philosophy degree in electrical engineering in 1952,
all from Stanford University. Follows ing trio years of research at the
Bell Telephone Laboratories, Murray Hill, Ne`` Jersey, he was
appointed Assistant Professor of Electrical Engineering at Stanford
in 19~4~ leas advanced to Associate Professorship in 1957, and
became Professor of Electrical Engineering and Applied Physics in
1960. He leas Acting Chairman of the Applied Physics Division at
Stanford in 1962' Associate Provost and Dean of Research for the
period 1963-67, and leas Chairman of the Applied Physics De-
partment at the time of his death.
On a leave from Stanford in 196~61, Dr. Heffner served as
Scientific Liaison Officer for the London Office of the U.S. Office
of Naval Research. His most important assignment zenith the Fed-
eral Government canoe on a second leave in 1969-71, lichen he
served as Deputv Director of the Office of Science and Technology
of the President. Lee bridge ``as Director at that time, and
much important policy ~` as formulated on a variety of issues,
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including transportation, telecommunications, and early studies of
the energy problem. Dr. Heffner was a member of many important
advisory committees for the Government and for his professional
societies. Among these were the "Tycho" Space Science Study
Group for the National Aeronautics and Space Administration and
the Advisory Group on Electron Devices of the Department of
Defense. He was Chairman of the Working Group on Microwave
Devices of this last organization for the period 1961-67. Other
prestigious boards on which he served included the Defense
Science Board, the General Advisory Committee of the Atomic
Energy Commission, the President's Committee on the National
Medal of Science, and the National Science Board.
Dr. Heffner was active on Academy assignments as well. He was
a member of the National Academy of Engineering (NAE) Commit-
tee on Engineering Manpower Policy and Chairman of the Panel
on Education of the NAE Project Committee from 1972 to 1975. In
the National Research Council he served on the U.S. National
Committee for the International Union of Radio Science (URSI) and
was U.S. Chairman for Commission VII of that body. He served
also on the Committee for AEC Postdoctoral Fellowships and the
Evaluation Panel for the National Bureau of Standards' Institute of
Applied Technology. In the Institute of Electrical and Electronics
Engineers (lEEE), he was a Member of the Editorial Board for the
Transactions of the Professional Group on Electron Devices (GED),
Vice-Chairman of the GED, Chairman of the Inter-Society Joint
Council on Quantum Electronics, and a member of the Board of
Directors from 1968 to 1970. He was a Fellow of both the TEEE and
the American Physical Society.
While at the Bell Laboratories, Heffner, working with Clogston,
did some of the first fundamental work on periodic focusing for
traveling wave tubes, resulting in a classic paper and several patents
on that subject. Traveling wave tubes before that time were
solenoid-focused, but now almost universally employ the lighter
and less costly periodic focusing methods. His analysis of the
backward-wave tube in 1954 was also the standard reference on
that device during the important period of its development. At
Stanford University he continued his definitive analyses of the
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newer microwave devices, including parametric amplifiers, E-type
traveling-wave devices, and masers. The latter part of his work
focused on quantum electronics with special analysis of quantum
noise problems, nonlinear effects, and the quantum limits on
measurement. He guided the work of many influential graduate
students in both the microwave and quantum electronics fields and
was known as a clear and incisive teacher. He was a much sought-
after consultant both for industry and for policymaking organiza-
tions of the government.
At the time of Dr. Heffner's death, Norman Hackerman, Chair-
man of the National Science Board and President of Rice Univer-
sity said, "It is with deep regret that the Board learned of the death
of Dr. Heffner. We knew him as an especially able scientist, and a
thoughtful and dedicated administrator particularly interested in
and knowledgeable in the area of science policy. Equally important,
he was recognized by his students and his colleagues as a skillful
teacher. His wisdom will be greatly missed." H. Guyford Stever,
then Director of the National Science Foundation, stated, "Dr.
Heffner made substantial contributions to the academic and scien-
tific communities, industry, and international bodies through his
scientific expertise and wise counsel. Significant among these were
his efforts as a member of the Science Policy Working Group of the
U.S.-U.S.S.R. Joint Commission on Scientific and Technical Coop-
eration. He will be missed by his colleagues and by the larger
community he served so willingly and so well."
Hu Heffner is much missed by all who knew and worked with
him, but he left a fine legacy of classic, fundamental papers and
enduring contributions to sound policy for our country.
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Representative terms from entire chapter:
applied physics
