Nuclear magnetic resonance

Early life in Illinois; B.S. from Purdue University under Karl Lark-Horovitz, 1929-1933. Visit to Technische Hochschule in Karlsruhe. Theoretical and experimental work and teaching at Harvard University, 1934-1941, under Emory L. Chaffee, Kenneth T. Bainbridge, John Van Vleck. World War II research on radar at MIT Radiation Laboratory, 1941-1946. Return to Harvard; teaching, nuclear magnetic resonance and 21-cm line research. Discusses government consulting work, 1950-1970, especially President's Science Advisory Committee, American Physical Society presidency; teaching at Harvard. Interests in astrophysics, developing physics curricula. Also prominently mentioned are: Kenneth Tompkins Bainbridge, Felix Bloch, Bobby Cutler, Robert Henry Dicke, Edwards, Dwight D. Eisenhower, Harold Ewen, Ferry, William Francis Giauque, William Webster Hansen, Malcolm Hebb, Ted Hunt, Lyndon B. Johnson, Fritz Leonhart, Dunlap McNair, Otto Oldenburg, Jan Hendrik Oort, Wolfgang Pauli, Robert V. Pound, Isidor Isaac Rabi, Norman Foster Ramsey, Franklin D. Roosevelt, Schnabel, Julian R. Schwinger, Francis Eugene Simon, Charles Steinmetz, Henry Torrey, Hendrik Christoffell van de Hulst, John Von Neumann, Isidor Walerstein, Walter Witzel, Hubert J. Yearian, Jerrold Reinach Zacharias; Bell System Technical Journal, Great Britain Royal Air Force Coastal Command, Radio Research Laboratory, Illinois Southeastern Telephone Co., Killian Committee, Lawrence Radiation Laboratory, National Academy of Sciences, Rijksuniversiteit te Leiden, Unitarian Church, United States Office of Naval Research, University of California at Berkeley, and Voice of America.

Early life in Illinois; B.S. from Purdue University under Karl Lark-Horovitz, 1929-1933. Visit to Technische Hochschule in Karlsruhe. Theoretical and experimental work and teaching at Harvard University, 1934-1941, under Emory L. Chaffee, Kenneth T. Bainbridge, John Van Vleck. World War II research on radar at MIT Radiation Laboratory, 1941-1946. Return to Harvard; teaching, nuclear magnetic resonance and 21-cm line research. Discusses government consulting work, 1950-1970, especially President's Science Advisory Committee, American Physical Society presidency; teaching at Harvard. Interests in astrophysics, developing physics curricula. Also prominently mentioned are: Kenneth Tompkins Bainbridge, Felix Bloch, Bobby Cutler, Robert Henry Dicke, Edwards, Dwight D. Eisenhower, Harold Ewen, Ferry, William Francis Giauque, William Webster Hansen, Malcolm Hebb, Ted Hunt, Lyndon B. Johnson, Fritz Leonhart, Dunlap McNair, Otto Oldenburg, Jan Hendrik Oort, Wolfgang Pauli, Robert V. Pound, Isidor Isaac Rabi, Norman Foster Ramsey, Franklin D. Roosevelt, Schnabel, Julian R. Schwinger, Francis Eugene Simon, Charles Steinmetz, Henry Torrey, Hendrik Christoffell van de Hulst, John Von Neumann, Isidor Walerstein, Walter Witzel, Hubert J. Yearian, Jerrold Reinach Zacharias; Bell System Technical Journal, Great Britain Royal Air Force Coastal Command, Radio Research Laboratory, Illinois Southeastern Telephone Co., Killian Committee, Lawrence Radiation Laboratory, National Academy of Sciences, Rijksuniversiteit te Leiden, Unitarian Church, United States Office of Naval Research, University of California at Berkeley, and Voice of America.

This interview is primarily focused on Purcell's life and work at Harvard University, which includes a description of his life there as a graduate student in the 1930s; recollections about older professors Black, Bainbridge, Bridgman, Hall, Kemble, Lyman, Saunders, and Van Vleck; work on new cyclotron with Bainbridge leading to Ph.D.; World War II years at MIT Radiation Laboratory leading to NMR work with Pound, Torrey and Bloembergen; description of 100,000 volt storage battery in the basement of Lyman Laboratory.

Childhood influences of father and teacher on career decision; childhood experiences as radio amateur. First studies in physics at Collegio Borromeo, Pavia; influences of Adolfo Campetti and Prof. Brunetti in radioactivity. Spectroscopy work with Campetti and later experimentation with Raman spectroscopy of calcite. Graduation, 1933; meeting future wife. Move to Switzerland during World War II; repatriation and resumption of lab work at Università di Pavia. Abortive work toward lamb shift in hydrogen spectrum. Postwar instrumentation and funding problems. Move to nuclear magnetic resonance; reproduction of Felix Bloch and Edward Purcell experiment; work on "negative temperature." Foreign influences brought by Fausto Fumi from Frederick Seitz, Nevill Mott; work with students in solid state. Views about the state of Italian physics, particularly on Edoardo Amaldi and the funding priority given to high energy physics.

This short interview touches briefly on Erwin Hahn's education at Juniata College, Purdue University, and the University of Illinois; initial interest in nuclear magnetic resonance; his postdoctoral years with Felix Bloch's group at Stanford University; and his three years as a research scientist with IBM. Hahn also comments briefly on his consultantship with Hughes' maser group; his work on self-induced transparency; and his collaboration with Richard Brewer at IBM. Also prominently mentioned are: Sam Bass, Jesse Wakefield Beams, Felix Bloch, Nicolaas Bloembergen, Richard Brewer, John Clarke, Gene Commins, Harry Daghalian, Robert Henry Dicke, Gordon Gould, Donald W. Kerst, Theodore Maiman, Sam McCall, Mitsunaga, Arthur Leonard Schawlow, Norman Shiren, Charles Slichter, Dick Slusher, Russell Harrison Varian; Bell Telephone Laboratories, Columbia University, IBM Watson Laboratories, Los Alamos National Laboratory, National Science Foundation (U.S.), United States Navy, and University of Virginia.

Graduate research on nuclear magnetic resonance at Harvard with Edward M. Purcell and Robert V. Pound, 1946-1947. Leiden postdoctoral fellowship, 1947-1948. Microwave and nuclear experiments as a Harvard Junior Fellow, 1949-1951. Early years in the Harvard Division of Engineering and Applied Physics. The 3-level maser. Nonlinear optics in the 1960s. Also prominently mentioned are: John A. Armstrong, Nikolai Gennadievich Basov, George Benedek, Francis Bitter, Felix Bloch, Gregory Breit, Vannevar Bush, Al Clogston, James Bryant Conant, William Culver, Gene Cummins, Damon, Robert Henry Dicke, Peter Alden Franken, Elsa Meints Garmire, Alexander J. Glass, Glauber, Gordon, Gorter, Grivet, William Webster Hansen, Herscher, Clarence Lester Hogan, Heike Kamerlingh-Onnes, Robert Karplus, Rudolf Kompfner, André Lallemand, Jim Meyer, Peter Pershan, Isidor Isaac Rabi, Arthur Leonard Schawlow, Julian R. Schwinger, Malcolm Woodrow Pershing Strandberg, Charles Hard Townes, John Hasbrouck Van Vleck, Shih Wang, Welton, Irvin Wieder, Wolf, Zeldovitch; American Physical Society, Bell Telephone Laboratories, Institute for Defense Analysis (IDA), International Business Machines Corporation, Lawrence Radiation Laboratory, Lincoln Laboratory at Massachusetts Institute of Technology, Radiation Laboratory at Massachusetts Institute of Technology, Netherlands Ministerie van Oderwijs en Wetenschappen, and Optical Society of America.

In this interview, Nicolaas Bloembergen discusses the history of the Harvard University physics department. Topics discussed include: Otto Oldenberg; Abraham Pais; Edward M. Purcell; nuclear magnetic radiance; Julian Schwinger; University of Leiden; Harvard University Division of Engineering and Applied Physics; Eli Yablonovitch.

Recollections of physics community in 1920s and early 1930s; opportunities for physics work in Europe; awareness of political climate in Germany (1932); relationship with Werner Heisenberg at University of Leipzig; awarded Rockefeller Fellowship to study at University of Rome; contacts with physicists after Leipzig and before Rome; John Von Neumann's list of refugee physicists; offered appointment to position at Stanford University; visit to University of Copenhagen and Niels Bohr's advice to accept appointment; relinquishing of second half of fellowship; influenced by Bohr, Heisenberg and others; Bloch's influence on Enrico Fermi leading to theory of neutrino; met by Gregory Breit on arrival in New York; initial teaching duties at Stanford; theoretical physics in America in 1934; distinctions between Europe and America on theory vs. experiment; seminars with J. Robert Oppenheimer; first interest in experimental work; early research on neutrons; recollections of 1935 Michigan Summer School; started Stanford Summer School in 1936 with George Gamow as first visitor (Fermi 1937, Isidor Isaac Rabi 1938, Victor F. Weisskopf 1939); origin of idea of neutron polarization; 1936 paper proposing neutron magnetic moment experiment; 1937 Galvani Conference in Bologna; use of Berkeley 37-inch cyclotron for magnetic moment experiment; decision to build cyclotron at Stanford; construction supported by Rockefeller Foundation; initial involvement with Manhattan Project; recollections of receiving news of fission; neutron work for Manhattan Project at Stanford; marriage in 1940; work on implosion at Los Alamos Scientific Laboratory; reasons for leaving Los Alamos; work on radar at Harvard University; first ideas on measuring nuclear magnetic resonance (NMR); helpfulness of radar experience in NMR work; William W. Hansen and the klystron; fate of the first Stanford cyclotron; knowledge of Edward M. Purcell's work on NMR; publication of initial results, 1946-1948; Rabi and Polykarp Kusch's work on molecular beams; development of NMR field; Nobel Prize award; association with CERN, 1954; contributions of greatest impact.