A known but often overlooked property of optical monochromators is discussed in view of its current applications. It is shown that grating and prism monochromators hold on to light for time durations proportional to resolving power and that the dispersing ability of monochromators extends to pulses of arbitrarily short duration. (SK)

Discusses the properties of laser light, reviews types of lasers, presents operating principles, and considers mechanical aspects of laser light production. Applications reviewed include spectroscopy, photochemical reaction initiation, and investigation of biological processes involving porphyrins. (JM)

Science interfacing packages (also known as microcomputer-based laboratories or probeware) generally consist of a set of programs on disks, a user's manual, and hardware which includes one or more sensory devices. Together with a microcomputer they combine to make a powerful data acquisition and analysis tool. Packages are available for accurately…