Nanoworld is dedicated to the microscopy and microanalysis of materials at the atomic, molecular, cellular, and macromolecular scales. The image gallery contains pictures of various materials.
From the Optical Society of America (OSA), Optics ImageBank contains over 200,000 images derived from OSA's journals. Images include charts, graphs, micrographs, illustrations, and pictures. The images can be imported into other programs. (Copyright permission may be required.) Optics ImageBank can be searched by keywords and filtered by journal, date range, OSA topic area (OSA technical divisions), and OSIS codes