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Ruby laser

About: Ruby laser is a research topic. Over the lifetime, 2474 publications have been published within this topic receiving 38933 citations. The topic is also known as: corundum laser & ruby rod.


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Journal ArticleDOI
TL;DR: This paper is an attempt to evaluate the clinical application of laser iridotomy from the results of treating more than forty eyes.
Abstract: Extensive experience with animals has shown that it is possible to irradiate the iris with a ruby laser without damage to the cornea, lens, or retina (Hallman, Perkins, Watts, and Wheeler, I 968, I969). The possible use of a laser to make an iridotomy for therapeutic purposes was appreciated by Flocks and Zweng (i964), and Zweng, Flocks, Kampany, Silbertrust, and Peppers (I964) reported two attempts to perform this in human eyes. In neither case was a complete iridotomy produced, but holes were produced in two pigmented irides by Zweng, Paris, Vassiliadis, Rose, and Hayes (I970). Some success in treating a small series of cases of closed-angle glaucoma and secondary glaucoma due to iris bombe has been reported (Perkins, I970, I971), and this paper is an attempt to evaluate the clinical application of laser iridotomy from the results of treating more than forty eyes.

23 citations

Journal ArticleDOI
TL;DR: In this study, several extracted noncarious maxillary incisors were prepared for enamel and dentin laser irradiation, and an Ivorine Dentoform tooth was also irradiated, showing only surface irregularities.
Abstract: Laser technology, in just five years after its birth, has opened many intriguing areas of medical research and clinical application. Preliminary tests have shown the pulsed ruby laser to have demonstrable effects on tooth structure in vivo and in vitro. In this study, several extracted noncarious maxillary incisors were prepared for enamel and dentin laser irradiation. An Ivorine Dentoform tooth was also irradiated. The apparatus employed was a focused, pulsed ruby laser head with a 2,000 joule power supply. After lasing, the samples were examined grossly and microscopically: 1.Enamel exhibited gross cratering from 0.1 to 1.1 mm. deep, depending on the amount of energy delivered to the target area. In dentin-deep enamel penetrations, a dark speckling of the exposed dentin subjacent to the lased enamel was observed. Examination under polarized light strongly suggested the presence of laser-induced crystallographic changes in the enamel bordering the enamel craters. 2.Dentin laser impacts yielded shallow, irregular craters less than 0.1 mm. deep. Three distinct zones of dentinal destruction were revealed: (a) a central zone of complete dentinal destruction; (b) an immediately surrounding zone of partial dentinal destruction; and (c) a scattered zone of dark speckling beyond the first two zones. 3.Lased Ivorine demonstrated the mildest effect, showing only surface irregularities. Suggestions are presented for possible future applications of the laser, as the state of the art of laser technology advances. Laser radiation offers exciting possibilities in dental research, oral tumor management, instrumentation, and precision techniques in restorative and prosthetic dentistry. Though laser researchers are presently too committed to the advancement of the state of the art to divert their attention to practical applications, this should not discourage dental investigators from uncovering further the laser's applicability to dentistry.

22 citations

Journal ArticleDOI
TL;DR: In this paper, the differences between the liquid and solid phase annealing mechanisms of the pulsed-laser and scanned-electron-beam methods, respectively, are highlighted.
Abstract: Silicon implanted with As+, P+, or B+ ions has been annealed by the multiple‐scan electron beam method and by use of pulsed radiation from a Q‐switched ruby laser. Electron microscope examination of specimen cross section gives direct comparison of the initial implantation damage with the structures produced by the different annealing methods. Sample electric conductivities after annealing are also compared. This work highlights the differences between the liquid‐ and solid‐phase annealing mechanisms of the pulsed‐laser and scanned‐electron‐beam methods, respectively.

22 citations

Journal ArticleDOI
TL;DR: In this paper, the non linear photoconductivity of GaP was studied using three-photon and twophoton excitation by a neodymium and a ruby laser.

22 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20237
20228
20214
202011
20199
20189