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Pyroelectric copying process

 

作者: J.G. Bergman,   G.R. Crane,   A.A. Ballman,   H.M. O'Bryan,  

 

期刊: Applied Physics Letters  (AIP Available online 1972)
卷期: Volume 21, issue 10  

页码: 497-499

 

ISSN:0003-6951

 

年代: 1972

 

DOI:10.1063/1.1654233

 

出版商: AIP

 

数据来源: AIP

 

摘要:

An electrostatic copying process based on the pyroelectric effect is described. The effect is demonstrated with single crystals of LiTaO3, ceramic plates of lanthanum‐modified lead zirconate‐titanate (PLZT), and polymer films of polyvinylidene fluoride (PVF2). By employing thin films (0.8 mil) of PVF2to minimize thermal diffusion, we have obtained sufficient resolution to allow charge distributions (images) to be visually observed by dusting the films with conventional electrostatically charged inks. Since the pyroelectric effect is not wavelength dependent, certain advantages over photoconductive techniques, with their inherent wavelength dependence, are possible.

 

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