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  • 1
    Electronic Resource
    Electronic Resource
    Piezoelectric properties of layered perovskite A2Ti2O7 (A=La and Nd) single-crystal fibers (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 4469-4471 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Lanthanum and neodymium titanate A2Ti2O7 (A=La, Nd) single-crystal fibers were grown via the laser-heated pedestal growth technique. The single-crystal fibers were 600 μm in diameter and 3–4 cm in length. The piezoelectric, k23 and d23, and elastic compliance, s33, coefficients were measured using the standard resonance-antiresonance technique. From a comparison of the measured coefficients to poled single crystal data in the literature, it is concluded that the La2Ti2O7 single-crystal fiber grew in a single domain state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.349078
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Strontium barium niobate single-crystal fibers: Optical and electro-optic properties (1991)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 70 (1991), S. 3215-3222 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The room-temperature transverse electro-optic, rc, coefficient, halfwave voltage, Vπ, and temperature dependence of the birefringence, Δn0(T), were determined for Sr0.61Ba0.39Nb2O6 single-crystal fibers produced by the laser-heated pedestal growth technique. The effect cerium doping, 0.034 at. %, had on the measured properties is also reported. Concurrent measurements on a Czochralski-grown Sr0.61Ba0.39Nb2O6 single crystal enabled comparison of the single-crystal fibers to a bulk-grown single crystal. The growth rate of the Sr0.61Ba0.39Nb2O6 single-crystal fibers was approximately an order of magnitude greater than the Czochralski-grown Sr0.61Ba0.39Nb2O6 single crystal. The effect the rapid growth rate had on the optical properties is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.349305
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Noncritical phase matching and photorefractive damage in Sc2O3:LiNbO3 (1994)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 64 (1994), S. 3228-3230 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The noncritical phase-matching temperature, Tpm, of Sc2O3-doped LiNbO3 was measured as a function of Sc2O3 concentration (0.0, 0.5, 1.0, and 1.5 mol % Sc2O3). Increasing the Sc2O3 concentration increased the phase-matching temperature, but to a lesser extent than reported in MgO:LiNbO3. The maximum phase-matching temperature was 46.5 °C in the 1.0 mol % Sc2O3:LiNbO3 crystal with an estimated temperature bandwidth of 1° cm. Photorefractive damage, determined by distortion in the transmitted beam, decreased with increasing Sc concentration, reaching a damage level comparable to that observed in 5.0 mol % MgO:LiNbO3 crystal in the 1.5 mol % Sc2O3:LiNbO3 crystal.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.111317
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  • 4
    Electronic Resource
    Electronic Resource
    Increased optical damage resistance in Sc2O3-doped LiNbO3 (1992)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 61 (1992), S. 2156-2158 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The optical damage of 1 mol % Sc2O3-doped LiNbO3 was approximately two times smaller than an optical grade LiNbO3 measured as a function of Ar+ (λ=488 nm) irradiation time. Severe Ar+ beam distortion observed in the undoped LiNbO3 was not present in the Sc2O3-doped LiNbO3. There was negligible shift in the OH− absorption band but a 10 nm blue shift was observed in the absorption edge, indicating that Sc3+ and Mg2+ incorporation may proceed by a different mechanism. This is the first of reported results, to the authors' knowledge, of a trivalent dopant increasing the damage resistance level in LiNbO3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.108279
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    Paper (German National Licenses)
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