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 article, the three-photon ionization probability rates of atomic cesium enhanced by linear and circular polarized laser radiation respectively were calculated in the framework of perturbation theory, using the Green's function and the quantum defect methods.
10 citations
TL;DR: In this paper, an easily implemented and easily manageable system for time-resolved holographic interferometry is presented, which consists of a multiple-pulsed Q-switched ruby laser and a rotating disk having radial slits with a constant angular separation.
Abstract: An easily implemented and easily manageable system for timeresolved holographic interferometry is presented. The system consists of a multiple-pulsed Q -switched ruby laser and a rotating disk having radial slits with a constant angular separation. The disk is used to scan the reference beam along a holographic plate, thereby achieving spatial multiplexing. Since the influence on the beam is negligible and a single slit is illuminated by every laser pulse, there is no need for synchronization. The interferometric pattern is achieved by removing the disk and exposing a reference image on the holographic plate. The system may serve as an excellent tool for full-field dynamic measurements. A simple experiment has been performed showing a sequence of momentary interference patterns on a vibrating plate.
10 citations
TL;DR: In this article, an optically induced magnetization precessing at a frequency corresponding to the energy separation near the level anticrossing points of the ground state 4 A 2 in ruby at room temperature was detected by a pick-up coil.
Abstract: Using excitation by ultrashort light pulses from a mode-locked ruby laser, we have observed optically induced magnetization precessing at a frequency corresponding to the energy separation near the level anticrossing points of the ground state 4 A 2 in ruby at room temperature. The motion of the magnetization is detected by a pick-up coil. The decay time of the signal is 5∼6 ns. The analysis is made by using the model of fictitious spin 1/2 and the agreement with the experiment is satisfactory.
10 citations
TL;DR: The temperature shift of ruby laser emission has been measured interferometrically for temperatures between 66° and 210°K as mentioned in this paper, and the results were in excellent agreement with calculations by McCumber and Sturge which were based on Raman scattering of Debye model phonons.
Abstract: The temperature shift of ruby laser emission has been measured interferometrically for temperatures between 66° and 210°K Representative values of the temperature shift coefficient are 0004 A/K° at 66°K, 0014 A/K° at 100°K, and 0046 A/K° at 200°K These results are in excellent agreement with calculations by McCumber and Sturge which were based on Raman scattering of Debye‐model phonons The experimental technique for measuring the wavelength shifts is described in detail, and the results are compared with earlier measurements of the temperature dependence of ruby R1 absorption and ruby laser emission
10 citations
TL;DR: Raman spectroscopy has been used to characterize carbon-doped silicon samples prepared by ion implantation and pulsed laser annealing as discussed by the authors, and it has been shown that it has sufficient sensitivity to detect striated carbon distributions in as-grown commercial silicon.
Abstract: Raman spectroscopy is used to characterize carbon-doped silicon samples prepared by ion implantation and pulsed laser annealing. Sharp lines are observed in the Raman spectra due to the 12C local mode at 604±1 cm-1 and the 13C local mode at 586±1 cm-1. Identical spectra are obtained from a given carbon implant whether it is annealed using a 10 ns pulsed ruby laser or the significantly longer pulse of an R6G dye laser. It is shown that Raman spectroscopy has sufficient sensitivity to detect striated carbon distributions in as-grown commercial silicon. Finally, at high carbon density, where the local modes begin to broaden in the implanted and laser-annealed samples, a disorder-induced first-order Raman spectrum is observed produced by the mass defect of the substitutional carbon.
10 citations