A technique is described for obtaining short exposure (≈8 ns) high resolution photomicrographs of electrically exploded bridges using a pulsed laser for bridge illumination and band-pass filters to eliminate the intense self light. Two cameras are described, one for a small field of view (til mm) and one for a relatively large field of view (≈20 mm). A carbon disulfide cell and a fiber-optic light guide are used to essentially eliminate speckle, which normally limits the resolution of laser photographs of diffuse surfaces. A series of photomicrographs showing the detailed burst characteristics of both flat and round bridges are shown.

Date Published: 18 January 1977
PDF: 7 pages
Proc. SPIE 0094, High Speed Optical Techniques: Developments and Applications, (18 January 1977); doi: 10.1117/12.955144

Published in SPIE Proceedings Vol. 0094:
High Speed Optical Techniques: Developments and Applications
Michel A. Duguay; Richard K. Petersen, Editor(s)