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Reports on research by Paul Alivisatos of the University of California at Berkeley who built a single-electron transistor using microscopic chemically pure nanocrystals. The unusual properties of the nanocrystals; Experiments conducted by Alivisatos to grow nano-rods of precise lengths and diameters from individual nanocrystals.

Reports on the construction of a photonic bandgap crystal by researchers Shawn-Yu Lin and others at Sandia National Laboratories and the Massachusetts Institute of Technology. Materials used in the construction of the device; Capabilities of the phototonic crystal; Details on the development of the device.

The article reports on the development of a new, robust nonlinear optical crystal that generates mid-IR output in the two to nine μm range by the researchers at BAE Systems and the U.S. Air Force Research Laboratory. The author stated that the high-optical-quality cadmium silicon phosphide (CdSiP2) crystals are grown using directional solidification in a modified high-temperature furnace. In addition, the output of the research can be useful for medical applications.