Determination of the Raman gain coefficient in leucosapphire
An experimental investigation was made of stimulated Raman scattering in leucosapphire ({alpha}-Al{sub 2}O{sub 3}) pumped at the wavelength {lambda} = 532 nm by pulses of {tau} =30 ps duration (the second harmonic of an Nd{sup 3+} : Y{sub 3}Al{sub 5}O{sub 12} laser). The Raman gain coefficient was d...
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| Veröffentlicht in: | Quantum electronics (Woodbury, N.Y.) N.Y.), 1998-02, Vol.28 (2), p.162-166 |
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| container_end_page | 166 |
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| container_title | Quantum electronics (Woodbury, N.Y.) |
| container_volume | 28 |
| creator | Grasyuk, Arkadii Z Kurbasov, Sergei V Losev, Leonid L Lutsenko, Andrei P Kaminskii, Alexandr A Semenov, V B |
| description | An experimental investigation was made of stimulated Raman scattering in leucosapphire ({alpha}-Al{sub 2}O{sub 3}) pumped at the wavelength {lambda} = 532 nm by pulses of {tau} =30 ps duration (the second harmonic of an Nd{sup 3+} : Y{sub 3}Al{sub 5}O{sub 12} laser). The Raman gain coefficient was determined for the first vibrational Stokes component with the wavelength {lambda} = 544 nm, corresponding to a Stokes shift of 419 cm{sup -1}. This gain coefficient varied from 2.5 x 10{sup -10} to 4.6 x 10{sup -10} cm W{sup -1}, depending on the relative orientation of the leucosapphire crystal axes relative to the plane of polarisation and to the axis of the pump beam. The energy conversion efficiency was {eta} =1% when the pump intensity was 100 GW cm{sup -2}. (nonlinear optical phenomena and devices) |
| doi_str_mv | 10.1070/QE1998v028n02ABEH001162 |
| format | Article |
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The Raman gain coefficient was determined for the first vibrational Stokes component with the wavelength {lambda} = 544 nm, corresponding to a Stokes shift of 419 cm{sup -1}. This gain coefficient varied from 2.5 x 10{sup -10} to 4.6 x 10{sup -10} cm W{sup -1}, depending on the relative orientation of the leucosapphire crystal axes relative to the plane of polarisation and to the axis of the pump beam. The energy conversion efficiency was {eta} =1% when the pump intensity was 100 GW cm{sup -2}. 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The Raman gain coefficient was determined for the first vibrational Stokes component with the wavelength {lambda} = 544 nm, corresponding to a Stokes shift of 419 cm{sup -1}. This gain coefficient varied from 2.5 x 10{sup -10} to 4.6 x 10{sup -10} cm W{sup -1}, depending on the relative orientation of the leucosapphire crystal axes relative to the plane of polarisation and to the axis of the pump beam. The energy conversion efficiency was {eta} =1% when the pump intensity was 100 GW cm{sup -2}. 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The Raman gain coefficient was determined for the first vibrational Stokes component with the wavelength {lambda} = 544 nm, corresponding to a Stokes shift of 419 cm{sup -1}. This gain coefficient varied from 2.5 x 10{sup -10} to 4.6 x 10{sup -10} cm W{sup -1}, depending on the relative orientation of the leucosapphire crystal axes relative to the plane of polarisation and to the axis of the pump beam. The energy conversion efficiency was {eta} =1% when the pump intensity was 100 GW cm{sup -2}. (nonlinear optical phenomena and devices)</abstract><cop>United States</cop><pub>IOP Publishing</pub><doi>10.1070/QE1998v028n02ABEH001162</doi><tpages>5</tpages></addata></record> |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | ALUMINIUM COMPOUNDS ALUMINIUM OXIDES AMPLIFICATION BEAMS CHALCOGENIDES CHARGED PARTICLES CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY CONVERSION CRYSTALS ENERGY CONVERSION GAIN GRAIN ORIENTATION IONS LASERS MICROSTRUCTURE NEODYMIUM IONS NEODYMIUM LASERS NONLINEAR PROBLEMS ORIENTATION OXIDES OXYGEN COMPOUNDS POLARIZATION RAMAN EFFECT SOLID STATE LASERS TUNGSTEN IONS WAVELENGTHS |
| title | Determination of the Raman gain coefficient in leucosapphire |
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