A METHOD FOR PHOTOGRAPHING MICROWAVE WITH A POLAROID FILM.
HARVARD UNIV CAMBRIDGE MASS DIV OF ENGINEERING AND APPLIED PHYSICS
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A regular Polaroid film has proved to be applicable to a quick and easy direct mapping of an electromagnetic field. The method utilizes the selective development of the film in accordance with the thermal image produced by the electromagnetic field. The power required for the creation of a clear image is about 10.06 watts per square inch. The time of exposure to the microwave is about 15 to 60 seconds. The method would be most useful for preparing microwave holograms. It can also be applied to the mapping of the temperature distribution to space. Author
- Radiofrequency Wave Propagation