Accession Number : AD0779696

Title :   Modulation of an Electron Beam at Optical Frequencies.

Descriptive Note : Final scientific rept.,

Corporate Author : POLYTECHNIC INST OF BROOKLYN N Y DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Bergstein,Leonard

Report Date : 01 APR 1973

Pagination or Media Count : 23

Abstract : Attempts to reproduce as closely as possible the observation of Professor Schwartz that electrons, after interacting with an intense laser beam in a thin transparent film, gave off light when they struck a non-fluorescent screen. An electron beam (of approximately 40,000 electron-volts) and a pulsed laser beam (of 40 watts peak power) were made to intersect at right angles in (1,000 Angstrom) thin transparent films of amorphous quartz (SiO2), polycrystalline sapphire (Al203), and monocrystalline mica. Light given off when transmitted electron beam struck a non-fluorescent alumina target was searched for with a sensitive photomultiplier capable of detecting single photons. No light that could be attributed to modulation of the electrons was detected. Further experimental work was devoted to modulating an electron beam with light and electronic detection of the modulation. This approach was an attempt to separate the original experiment in two parts: The results of this experiment was also negative. (Author)

Descriptors :   *Electron beams, Modulation, Laser beams, Interactions, Experimental design, Electrodynamics, Electrooptics

Subject Categories : Quantum Theory and Relativity

Distribution Statement : APPROVED FOR PUBLIC RELEASE