Photons

Involvement in the history of quantum physics and nuclear physics; thoughts on physics institutions in underdeveloped countries. Studies at University of Vienna in the early 1920s; his work at Felix Ehrenhaft's Institute until 1928; subsequent assistantship with Werner Heisenberg at University of Leipzig for four years. Conversations with Heisenberg about electrons in the nucleus; origins of Beck's interest in nuclear physics after hearing Francis W. Ashton's paper on mass defect at the 1927 Volta Conference; conferences at University of Copenhagen including 1932, where, before the positron was discovered, everyone was making fun of Paul A. M. Dirac's "holes." Theory of beta decay, inability to continue work on it due to lack of additional data when going to Kansas in 1934 and Odessa in 1935. Leaves Odessa; internment in France during the war; escape to Portugal and arrives in Argentina. Also prominently mentioned are: M. Besso, Niels Bohr, Albert Einstein, Wolfgang Pauli, Ernest Rutherford, Erwin Schrodinger, Adolf Smekal, Hans Thirring, Joseph J. Thomson, Victor F. Weisskopf, and Hideki Yukawa.

Session two is a joint interview with Robert Herman. Family background and early education, work at Carnegie Institution's Department of Terrestrial Magnetism, studies at George Washington University, wartime employment and studies, work with Navy on detection of mines; graduate studies with George Gamow while working at Johns Hopkins Applied Physics Laboratory, early universe theory, first encounter and later work with Robert Herman, interaction with physics community. Subrahmanyan Chandrasekhar and L. R. Henrich, neglect of Alpher and Herman work by astronomical community; General Electric projects: supersonic flow, re-entry physics, the Talaria project; the Penzias/Wilson observations; honors, marriage. Miscellaneous recollections about youth in Washington, D.C., service on scientific committees, public education efforts, work at General Electric. Meeting of Alpher and Herman, their collaboration, cosmological theory, work with George Gamow, Edward Teller, Hans Bethe, Edward Condon, cosmic background radiation, controversy with steady-state adherents and others; systematic neglect of their work, nucleosynthesis in stars, reactions to awards, discussions with Arno A. Penzias at the time of Nobel Prize award (with Robert W. Wilson), correspondence with S. Pasternack about P. James Peeble's cosmology papers, Alpher paper on neutrino and photon background calculation, James Follin, C. Hayashi, Steven Weinberg's presentation in his book The First Three Minutes; current cosmological efforts, A. Zee's papers on cosmology, views on the National Academy of Sciences and the National Academy of Engineering, Fred Hoyle's recent writings. Also prominently mentioned are: Niels Henrik David Bohr, Albert Einstein, Richard Phillips Feynman, Lawrence Randolph Hafstad, Robert Hofstadter, Huntington, and H. P. Robertson.

Session two is a joint interview with Robert Herman. Family background and early education, work at Carnegie Institution's Department of Terrestrial Magnetism, studies at George Washington University, wartime employment and studies, work with Navy on detection of mines; graduate studies with George Gamow while working at Johns Hopkins Applied Physics Laboratory, early universe theory, first encounter and later work with Robert Herman, interaction with physics community. Subrahmanyan Chandrasekhar and L. R. Henrich, neglect of Alpher and Herman work by astronomical community; General Electric projects: supersonic flow, re-entry physics, the Talaria project; the Penzias/Wilson observations; honors, marriage. Miscellaneous recollections about youth in Washington, D.C., service on scientific committees, public education efforts, work at General Electric. Meeting of Alpher and Herman, their collaboration, cosmological theory, work with George Gamow, Edward Teller, Hans Bethe, Edward Condon, cosmic background radiation, controversy with steady-state adherents and others; systematic neglect of their work, nucleosynthesis in stars, reactions to awards, discussions with Arno A. Penzias at the time of Nobel Prize award (with Robert W. Wilson), correspondence with S. Pasternack about P. James Peeble's cosmology papers, Alpher paper on neutrino and photon background calculation, James Follin, C. Hayashi, Steven Weinberg's presentation in his book The First Three Minutes; current cosmological efforts, A. Zee's papers on cosmology, views on the National Academy of Sciences and the National Academy of Engineering, Fred Hoyle's recent writings. Also prominently mentioned are: Niels Henrik David Bohr, Albert Einstein, Richard Phillips Feynman, Lawrence Randolph Hafstad, Robert Hofstadter, Huntington, and H. P. Robertson.

Ph.D. thesis under Charles H. Townes, with research (in collaboration with Herman Cummins) directed towards achieving an operating laser. How Abella became Townes’ thesis student and joined Cummins in 1959 in research on the potassium laser. Difficulties of work with the potassium laser; Townes’ abiding interest in the project even while he was on leave at the Institute for Defense Analysis (IDA); pumping sources for the potassium laser; work on the cesium laser; Oliver Heavens’ role in their laser project; his and Cummins’ reaction after learning that Maiman successfully operated the world’s first laser; Townes’ directive that Abella switch from cesium to ruby maser work; and aspects of his thesis work on 2-photon absorption and his experiment with Sven Hartmann on photon echoes.