PURPOSE The rat has been used to generate models of various eye diseases. However, methods to study the choriocapillaris noninvasively have been inadequate in this species. Laser-targeted angiography was applied to generate local, repetitive angiograms of the choriocapillaris in the rat and to assess the similarity between the choriocapillaris of the rat and that of the subhuman primate. METH...

The short-lived longitudinal plasma oscillations generated during filamentation in argon and nitrogen gas are measured with a specially designed current monitor. The magnitude and initial direction of the corresponding currents depend sensitively on laser polarization and nature of the gas. The results are interpreted as resulting from the competition between two forces acting on free electrons...

The performance of twin injection seeded Nd:YAG lasers is compared with the performance of an argon-ion laser for recording dual-reference-beam holograms in Agfa 8E56 emulsion. Optical heterodyning is used to measure interference and the results are expressed in terms of heterodyning signal level and intensity signal to noise. The Nd:YAG laser system is to be used for optical inspections of str...

The performance of twin injection seeded Nd:YAG lasers is compared with the performance of an argon-ion laser for recording dual-reference-beam holograms in AGFA 8356 emulsion. Optical heterodyning is used to measure interference, and the results are expressed in terms of heterodyning signal level and inteiisity signal-to-noise. The Nd:YAG laser system is to be used for optical inspections of s...

Ten vascular disciform mucular lesions were treated by krypton laser photocoagulation. In 8 the lesion resolved after therapy, and in 7 the retina remained flat for 6 months. On those patients treated successfully 6 had a visual acuity of 6/12 or better. The morphology of the laser lesion differed from that of the argon lesion in that there is no evidence of thermal coagulation of the inner ret...

The Diagnodent device is based on principles of caries detection by laser fluorescence which were developed in Sweden in the mid-1980s. Since that time, several lasers have been employed for caries detection (such as the argon, carbon dioxide, and excimer lasers). These systems are however more complex to use and more expensive than the visible red diode laser system upon which Diagnodent® is b...

Fluorescent staining of the cyanoacrylate developed prints was known in the early 1980’s. Initially this technique could only be used by labs equipped with a laser, like the argon ion laser, even today an expensive light source. With the availability of cheaper light sources, most of them specially built for the forensic community, fluorescent staining of prints developed with cyanoacrylate bec...

Time resolved atomic emission, atomic absorbance, and laser-induced atomic fluorescence measurements of a Ž3 . millisecond pulsed glow discharge, made perpendicular to the insertion probe, provide temporal profiles of 1s P 5 2 Ž3 . and 1s P metastable argon atom populations. Acquisition of these profiles at different spatial positions in the 3 0 plasma provides data from which two-dimensional s...