title: An improved double-beam infrared microspectrometer.
abstract: The conversion of single-beam monochromators to double-beam microspectrometers is described. The principal advantage of the present system over others used is a great improvement in the long-term stability of the electronics; other advantages include simplicity, compactness, and complete freedom from beats due to mains frequency pickup. The system has been designed for use, in conjunction with a polarizer, for the examination of fibers, small crystals, and small areas of oriented biological macromolecules as well as for microsamples.
authors.affiliation: Department of Physics, College of Technology, Portsmouth, England.
authors.forename: E M
authors.initials: EM
authors.lastname: Bradbury
authors.forename: M A
authors.initials: MA
authors.lastname: Ford