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Cover: Microwaves with frequencies near 10 GHz see this three−dimensional array of copper wires and split rings as having an electric permittivity and a magnetic permeability that are both negative. The array, whose lattice constant is 2.68 mm, thus has a negative index of refraction. To learn about the curious behavior of negative−index materials, turn to the article by John Pendry and David Smith on page 37. (Photo courtesy of Minas Tanielian, Boeing Phantom Works.)

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Physics Today -- June 2004

Volume 57, Issue 6, pp. 9-75

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  • ARTICLES
  • PHYSICS UPDATE
  • LETTERS
  • SEARCH AND DISCOVERY
  • ISSUES AND EVENTS
  • MEETINGS
  • BOOKS
  • NEW PRODUCTS
  • WE HEAR THAT
  • OBITUARIES
    •

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    ARTICLES

      Reversing Light With Negative Refraction
      Materials engineered to have negative permittivity and permeability demonstrate exotic behavior, from a negative refractive index to subwavelength focusing.
      John B. Pendry and David R. Smith
      pp. 37-43
      Abstract    Full Text: [ HTML   PDF (1616 kB)  ]   

      A Conversation About Solid-State Physics
      Hans Bethe reminisces about the first applications of quantum mechanics to the theory of solids in the late 1920s and early 1930s.
      Hans A. Bethe and N. David Mermin
      pp. 53-56
      Abstract    Full Text: [ HTML ]   

    PHYSICS UPDATE

    LETTERS

    SEARCH AND DISCOVERY

      High-Redshift Supernovae Reveal an Epoch When Cosmic Expansion Was Slowing Down
      The Hubble Space Telescope has provided a harvest of supernovae that exploded when the universe was less than half its present linear size.
      Bertram Schwarzschild
      pp. 19-21
      Abstract    Full Text: [ HTML   PDF (137 kB)  ]   

      Bending Nature's Rules to Pattern Nanostructures on Sticky Surfaces
      Researchers form patterned nanowires by adapting a versatile technique used to self-assemble clusters on surfaces.
      Mark Wilson
      pp. 22-23
      Abstract    Full Text: [ HTML   PDF (745 kB)  ]   

      Is Sedna's Strange Orbit the Shape of Things to Come?
      A newly discovered distant minor planet may provide clues about the Sun's early environment.
      Steven K. Blau
      pp. 23-25
      Abstract    Full Text: [ HTML   PDF (642 kB)  ]   

      Lampreys Rely on a Molecular Switch to Detect UV Light
      By applying a combination of biochemical and biophysical techniques, researchers have identified a UV-sensitive photoreceptor in the pineal gland of the Japanese river lamprey.
      Charles Day
      pp. 25-26
      Abstract    Full Text: [ HTML   PDF (174 kB)  ]   

    ISSUES AND EVENTS

      Colwell Reflects on Six Years at NSF Helm
      Colwell is proud of her accomplishments and passionate about her science, and she has a friendly relationship with both Republicans and Democrats.
      Jim Dawson
      pp. 28-30
      Abstract    Full Text: [ HTML   PDF (754 kB)  ]   

      Scholars Probe Nanotechnology's Promise and Its Potential Problems
      With a revolution in everything from toys to tumors on the horizon, scientists in the nanotechnology arena are working to gain the public's trust.
      Toni Feder
      pp. 30-33
      Abstract    Full Text: [ HTML   PDF (549 kB)  ]   

      Nuclear Pit Facility Should Wait for Science and Policy Answers
      Jim Dawson
      pp. 34-35
      Abstract    Full Text: [ HTML   PDF (113 kB)  ]   

    MEETINGS

    BOOKS

      New Books

      pp. 64-66
      Abstract    Full Text: [ HTML   PDF (746 kB)  ]   

    NEW PRODUCTS

    WE HEAR THAT

      Two Theoretical Physicists Share Cosmology Prize

      p. 71
      Abstract    Full Text: [ HTML   PDF (339 kB)  ]   

      AIP Gemant Award Goes to Friedman

      p. 71
      Abstract    Full Text: [ HTML   PDF (339 kB)  ]   

      Zeki Wins King Faisal Science Prize

      p. 71
      Abstract    Full Text: [ HTML   PDF (339 kB)  ]   

      Killeen Is AGU's President-Elect

      pp. 71-72
      Abstract    Full Text: [ HTML   PDF (424 kB)  ]   

      Sargent Is New Vice President for AAS

      p. 72
      Abstract    Full Text: [ HTML   PDF (125 kB)  ]   

    OBITUARIES

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