Plastic Bag Material, Lm #13
by Bernardo Cesare
Title
Plastic Bag Material, Lm #13
Artist
Bernardo Cesare
Medium
Photograph - Photograph
Description
Polarized light photomicrograph of a stretched piece of nylon such as that used for plastic bags. Normally this non-crystalline material is isotropic, i.e. bare black under microscopic crossed-polarized imaging. But when it is deformed, either during industrial processes such as molding or simply by tearing and breaking apart, plastic acquires polarization and exhibits unpredictable colors, often arranged in beautiful fringes. The colors are 'interference colors' created by polarized light passing through an anisotropic medium. The stretched, broken, or cut plastic piece is flattened between two glass slides. Scan from color transparency. Polarized light, crossed polarizers and red tint lambda plate. Width of view 2.7 mm.
Uploaded
July 21st, 2022
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