Topic
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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TL;DR: In this paper, the effect of irradiation with nonlinearly absorbed light on reduced nicotinamide-adenine-dinucleotide (NADH) by either high peak power Ruby laser or by low power c.w. HeNe laser has been examined.
9 citations
TL;DR: In this article, the nonlinear luminescence in CdS has been studied using three-photon and twophoton excitation with a neo-dymium and a ruby laser, respectively.
9 citations
01 Dec 2011
TL;DR: In this paper, Maiman exposed a human tooth to his prototype Ruby laser and found that the emission wavelength of the laser at 633 nm (deep red visible light) offered no beneficial interaction with the tooth, with much of the energy transmitting the enamel and dentine with presumable attenuation by the pigmented pulpal tissue.
Abstract: In 1960, Theodore Maiman exposed a human tooth to his prototype Ruby laser. The emission wavelength of the laser at 633 nm (deep red visible light) offered no beneficial interaction with the tooth, with much of the energy transmitting the enamel and dentine with presumable attenuation by the pigmented pulpal tissue. The inconsistencies of laser-tissue interaction continue to pose some difficulty for the dental clinician; however, the development of many laser machines, amounting to a facility to produce laser photonic energy at several wavelengths between the visible and far infrared areas of the electromagnetic spectrum, addresses many of the inconsistencies. The oral cavity is a complex environment, where hard and soft tissues exist in close proximity and all within bacteria laden saliva. All oral tissues are receptive to laser treatment, but the biophysics governing laser-tissue interaction demands a knowledge of all factors involved in delivery of this modality. Through this knowledge, correct and appropriate treatment can be delivered in a predictable manner.
9 citations
TL;DR: In this article, the photoluminescence properties of laser-annealed single-crystal GaAs were measured and a theoretical prediction of the temperature distribution at the end of the laser pulse was performed.
Abstract: We have measured the photoluminescence properties of laser‐annealed single‐crystal GaAs. The quantum efficiency of the band‐edge emission at liquid helium temperatures was increased by 3 orders of magnitude after a single 10−3‐s pulse of ruby laser light. This increase in radiative efficiency is thought to be due to dissociation of Si‐donor‐Ga‐vacancy complexes, which is expected to decrease nonradiative processes and possibly increase radiative centers. A theoretical prediction of the temperature distribution at the end of the laser pulse was performed.
9 citations
TL;DR: In this article, the authors performed DLTS measurements for Au/n-CdTe junctions which were formed on surfaces irradiated by a pulsed ruby laser and showed that the irradiation of more than 0.3 J/cm2 energy density improved the Schottky junction and ohmic contact.
Abstract: DLTS measurements were carried out for Au/n-CdTe junctions which were formed on surfaces irradiated by a pulsed ruby laser. Electron trap levels at 0.65 eV and 0.83 eV below the conduction band were induced in high concentration by the irradiation of more than 0.8 J/cm2 energy density. The irradiation of 0.3 J/cm2 improved the characteristics of Schottky junction of Au/n-CdTe and ohmic contact of In/n-CdTe.
9 citations