1986 Photomicrography Competition

Fresnel zone plates: defraction gradient on silica

George Watchmaker

Affiliation
Lawrence Livermore National Laboratory
Livermore, California, USA
Technique
Brightfield
Magnification
20x

Live water mount of fan-shaped thallus of the green alga Ancdyomene stellata

Dr. Dennis D. Kunkel

Affiliation
University of Washington
Department of Neurological Surgery
Seattle, Washington, USA
Technique
Darkfield
Magnification
80x

Trace element variations in dolomite (mineral)

Lanier Rowan

Affiliation
U.S Geological Survey
Denver, Colorado, USA
Technique
Polarized Light and Cathodoluminescence
Magnification
40x