Detection of elements in biomedical fluids by laser-induced breakdown spectroscopy

Laser-induced breakdown spectroscopy has been used for the qualitative elemental analysis of human blood, sweat, and serum. The detection of most trace elements, especially metals, was demonstrated

Biomedical applications on laser technology at Los Alamos

Los Alamos has a long history of research in laser technology, and over the past few years we have begun to build a program directing some of that technology to a variety of applications in biology and medicine. As examples, two of these activities will be described in this manuscript: the use of a laser interferometer to measure the microwave absorption spectrum of DNA, and spectral measurements of the secondary light produced during laser corneal ablation

New developments in optical phase conjugation

In this review two major areas of investigation in optical phase conjugation are discussed: stimulated Brillouin scattering and dynamic effects in photorefractive media. 5 refs., 10 figs

Liquid excimers: Lasing Xe2 and Kr2 in liquid argon

By pumping a small cryogenic cell with a 40-ns, 1 MeV e-beam pulse, we have excited lasing in dilute mixtures of xenon or krypton in argon. The lasing occurred at 175 nm for the excimer Xe2 and 147 nm for Kr2. 14 refs., 4 figs

Electron-beam pumped liquid excimer lasers

We have investigated the excimers formed in liquid argon when various cryogenic gas mixes were excited by 1-MeV electrons. Fluorescence was detected from many excimers at their new red-shifted wavelengths, and XeO, Xe/sub 2/, and Kr/sub 2/ were lased. 25 refs., 12 figs