Results 191 to 200 of about 238,784 (230)
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Applied Physics Letters, 2001
An intersubband Raman laser has been realized in an artificial GaAs/AlGaAs three-level quantum-well structure. A CO2 laser in resonance with the one-to-three level transition is used as the pump, while the lasing emission occurs via the three-to-two level transition.
Liu, Hui +6 more
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An intersubband Raman laser has been realized in an artificial GaAs/AlGaAs three-level quantum-well structure. A CO2 laser in resonance with the one-to-three level transition is used as the pump, while the lasing emission occurs via the three-to-two level transition.
Liu, Hui +6 more
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Journal of Applied Physics, 1980
The semiconductor Raman laser has been realized by using a GaP crystal. Pumping is made by a Q-switched YAG laser operating at 1.064 μm. The round-trip loss in the Fabry-Perot resonator is 2% or less. The Raman scattering from LO phonons stimulates in the 〈100〉 direction, while the forward and backward Raman scattering from TO phonons stimulate in the 〈
K. Suto, J. Nishizawa
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The semiconductor Raman laser has been realized by using a GaP crystal. Pumping is made by a Q-switched YAG laser operating at 1.064 μm. The round-trip loss in the Fabry-Perot resonator is 2% or less. The Raman scattering from LO phonons stimulates in the 〈100〉 direction, while the forward and backward Raman scattering from TO phonons stimulate in the 〈
K. Suto, J. Nishizawa
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Nature, 2005
Stimulated Raman scattering is a nonlinear optical process that, in a broad variety of materials, enables the generation of optical gain at a frequency that is shifted from that of the incident radiation by an amount corresponding to the frequency of an internal oscillation of the material.
Mariano, Troccoli +5 more
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Stimulated Raman scattering is a nonlinear optical process that, in a broad variety of materials, enables the generation of optical gain at a frequency that is shifted from that of the incident radiation by an amount corresponding to the frequency of an internal oscillation of the material.
Mariano, Troccoli +5 more
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Conference on Lasers and Electro-Optics, 1982
This paper reports what we believe to be the first observation of a stimulated nonresonant anti-Stokes Raman laser. Thallium vapor which was inverted by selective photodissociation of TICI was used as the Raman medium. Using the second (532-nm) and third (355-nm) harmonics of a Nd:YAG laser as pump sources, stimulated anti-Stokes emission from the
J. C. White, D. Henderson
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This paper reports what we believe to be the first observation of a stimulated nonresonant anti-Stokes Raman laser. Thallium vapor which was inverted by selective photodissociation of TICI was used as the Raman medium. Using the second (532-nm) and third (355-nm) harmonics of a Nd:YAG laser as pump sources, stimulated anti-Stokes emission from the
J. C. White, D. Henderson
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Journal of Optics, 2017
High-power fiber lasers have seen tremendous development in the last decade, with output powers exceeding multiple kilowatts from a single fiber. Ytterbium has been at the forefront as the primary rare-earth-doped gain medium owing to its inherent material advantages.
V R Supradeepa +2 more
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High-power fiber lasers have seen tremendous development in the last decade, with output powers exceeding multiple kilowatts from a single fiber. Ytterbium has been at the forefront as the primary rare-earth-doped gain medium owing to its inherent material advantages.
V R Supradeepa +2 more
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Fiber and Integrated Optics, 1979
Optical fibers can exhibit wavelength conversion and other nonlinear optical effects at powers less than one watt. The reason has little to do with the glass in the fiber core, which is one of the least nonlinear of all materials, but rather with the tremendous interaction length possible in low-loss fibers.
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Optical fibers can exhibit wavelength conversion and other nonlinear optical effects at powers less than one watt. The reason has little to do with the glass in the fiber core, which is one of the least nonlinear of all materials, but rather with the tremendous interaction length possible in low-loss fibers.
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Titanium enhanced Raman microcavity laser
SPIE Proceedings, 2014Whispering gallery mode microcavities are ideally suited to form microlaser devices because the high circulating intensity within the cavity results in ultralow lasing thresholds. However, to achieve low-threshold Raman lasing in silica devices, it is necessary to have quality factors above 100 million. One approach to circumvent this restriction is to
Nishita, Deka +2 more
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