SYMPOSIA PAPER Published: 01 January 1979
STP39127S

Electric Fields Near Coated Surfaces: Application to Damage Protection

Source

Damage to transparent materials from intense light pulses usually begins at the exit surface. This is usually explained by “constructive” interference between incident and reflected waves: The total electric field may exceed the threshold for damage only upon reflection from the exit surface. However, in case of a surface coated with a thin film, interference may either increase or decrease the total electric field. Details depend on the optical constants, thickness, and wavelengths. A film designed to provide protection against excessive electric fields at one wavelength may not do so at other wavelengths. Also, attempts to minimize the field in the material proper may entail novel problems in the film, in which the damage mechanism may be an absorptive one.

Author Information

Rosenstock, HB
U. S. Naval Research Laboratory, Washington, D. C.
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Details
Developed by Committee: F01
Pages: 288–295
DOI: 10.1520/STP39127S
ISBN-EB: 978-0-8031-5578-7
ISBN-13: 978-0-8031-0085-5