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: The first operational solid-state laser utilizing a synthetic ruby crystal was built in May, 1960, and the acronym LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation.
Abstract: LASER is an acronym for Light Amplification by the Stimulated Emission of Radiation. Amplification itself may be characterized as a controlled release of stored energy. Townes and Schawlow developed the theory of the optical maser or laser in 1958. T. H. Maiman, in May, 1960, built the first operational solid-state laser utilizing a synthetic ruby crystal. As a first step in ruby laser operation, capacitor banks are charged with electric energy to provide an intense, brief light flash from powerful xenon-arc lamps. Trivalent chromium atoms in the ruby crystal whose end faces have been highly silvered, absorb and reradiate energy . . .
48 citations
TL;DR: In this article, a Q-switched ruby laser was used to excite the A1 symmetry 248 cm−1 polariton mode in a LiNbO3 crystal, at room temperature, in a resonator external to the laser cavity which was tuned to the Stokes frequency.
Abstract: We report the first observation of tunable stimulated Raman emission. A Q‐switched ruby laser was used to excite the A1 symmetry 248‐cm−1 polariton mode in a LiNbO3 crystal. The crystal, at room temperature, was placed in a resonator external to the laser cavity which was tuned to the Stokes frequency. It was possible to vary the Stokes frequency by altering the angle between the pump beam and the axis of the resonator. Stimulated Raman scattering from other polariton modes (152 cm−1, 628 cm−1) which are potentially tunable was observed. We also report the first observation of stimulated anti‐Stokes emission from a polariton mode.
48 citations
TL;DR: Using a mode-locked ruby laser, stimulated rotational and vibrational Raman scattering was observed in a variety of high-pressure gases, where previously no stimulated scattering has been reported as discussed by the authors.
Abstract: Using a mode‐locked ruby laser, stimulated rotational and vibrational Raman scattering has been observed in a variety of high‐pressure gases, where previously no stimulated scattering has been reported. Pulse energy conversion efficiencies as high as 70% have been obtained. Evidence for a strong optical Stark effect is seen in the gases producing rotational scattering. Self‐focusing in a collimated beam is observed in N2O and CO2.
48 citations
TL;DR: In this article, a 1.1′-diethyl-gl-nitro-4.4''-dicarbocyanine-tetrafluoro-borate dye laser with a 150 MW mode-locked ruby laser of the same transit time was used.
47 citations
TL;DR: In this paper, different mechanisms of evaporation leading to the observed differences in characteristics of thin films are discussed, and the crystallinity, morphology and the chemical composition of the produced thin films have been examined by various analytical methods.
Abstract: Thin films of several III–V and II–VI compounds as well as of some dielectrics have been vacuum-deposited using a focused beam of a CO2 or ruby laser to evaporate these materials. The crystallinity, morphology and the chemical composition of the produced thin films have been examined by various analytical methods. Films produced by the ruby laser were in most cases polycrystalline and stoichiometric, while films produced by the CO2 laser were amorphous and non-stoichiometric. Different mechanisms of evaporation leading to the observed differences in characteristics of thin films are discussed.
47 citations