Emilio Segrè Visual Archives

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Zallen Richard B2

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Zallen Richard B2

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Richard Zallen
Image title: 
Phonon-polariton dispersion curve
Credit line: 
Photo by Gene Davis, courtesy AIP Emilio Segrè Visual Archives, Zallen Collection

Presentation by Richard Zallen to Xerox colleagues and management at an internal company conference held at the Xerox Webster Research Center (near Rochester, NY) in the Fall of 1970. Projected on the screen is an experimentally determined phonon-polariton dispersion curve for crystalline As2Se3.

Photo date: 
Original format: 
1 digital image/jpeg (grayscale; 5 MB)
Zallen, Richard