Výsledky vyhledávání

A reply to 'Acoustic-mode contributions to pyroelectric compliance' by M.E. Lines

Publikováno v: Journal of Physics C: Solid State Physics. 8:L594-L595

The authors reiterate the salient points of a previous communication by Grout, March and Thorp (see ibid., vol.8, p.2167, 1975) in answer to a paper by Lines (see ibid., vol.8, p.L589, 1975).

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https://doi.org/10.1088/0022-3719/8/24/007

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Frozen-in viscoelasticity for novel beam expanders and high-power connectors

Autor: M.E. Lines, Ian A. White, Patrick W. Wisk, Man Yan, Eric M. Monberg, David J. DiGiovanni, F. V. Dimarcello, Gregory A. Sandels, J. Jasapara, S. L. Jones, D.N. Ridgway, A. D. Yablon

Publikováno v: Journal of Lightwave Technology. 22:16-23

Frozen-in viscoelasticity has a significant, yet previously overlooked, impact on the refractive index profile of optical fibers and can serve as the basis for novel fiber devices. Viscoelastic strains can be frozen into an optical fiber during draw,

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https://doi.org/10.1109/jlt.2003.822161

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Scaling of the raman gain coefficient: applications to germanosilicate fibers

Autor: Henrik Smith, M.E. Lines, Jake Bromage, Karsten Rottwitt, Andrew John Stentz, Lufeng Leng

Publikováno v: Rottwitt, K, Bromage, J, Stentz, A J, Leng, L, Lines, M E & Smith, H 2003, ' Scaling the Raman gain coefficient: Applications to Germanosilicate fibers ', Journal of Lightwave Technology, vol. 21, no. 7, pp. 1652-1663 . https://doi.org/10.1109/JLT.2003.814386

This paper presents a comprehensive analysis of the temperature dependence of a Raman amplifier and the scaling of the Raman gain coefficient with wavelength, modal overlap, and material composition. The temperature dependence is derived by applying

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https://doi.org/10.1109/jlt.2003.814386

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Refractive index perturbations in optical fibers resulting from frozen-in viscoelasticity

Autor: David J. DiGiovanni, William Alfred Reed, F. V. DiMarcello, Patrick W. Wisk, J. Fleming, Man F. Yan, J. Jasapara, E. M. Monberg, M.E. Lines, A. D. Yablon

Publikováno v: Applied Physics Letters. 84:19-21

We show that frozen-in viscoelasticity has a significant impact on the refractive index profile of optical fibers. Viscoelastic strains can be frozen into an optical fiber during draw, or by cooling down a drawn fiber from its fictive temperature whi

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https://doi.org/10.1063/1.1638883

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Can the minimum attenuation of fused silica be significantly reduced by small compositional variations? II. Combined fluorine and alkali metal dopants

Autor: M.E. Lines

Publikováno v: Journal of Non-Crystalline Solids. 171:219-227

Theoretical arguments are presented and experimental evidence discussed to suggest that fluorine, when doped into the binary silicate glasses χM2O·(1−χ)SiO2, M = Li, Na, K, Rb, preferentially bonds with the silica network for M = Li, Na, but ini

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https://doi.org/10.1016/0022-3093(94)90190-2

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Can the minimum attenuation of fused silica be significantly reduced by small compositional variations? I. Alkali metal dopants

Autor: M.E. Lines

Publikováno v: Journal of Non-Crystalline Solids. 171:209-218

The glass transition temperature, Tg, of fused silica is known to be dramatically reduced by small dopant concentrations of alkali metals. Since the dominant loss contribution in pure silica at the minimum attenuation wavelength of 1.55 μm is theore

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https://doi.org/10.1016/0022-3093(94)90189-9

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A method to predict the Raman gain spectra of germanosilicate fibers with arbitrary index profiles

Autor: Jake Bromage, M.E. Lines, Karsten Rottwitt

Publikováno v: IEEE Photonics Technology Letters. 14:24-26

In this letter, we present a technique for calculating the Raman gain spectra of germanosilicate fibers from their index profiles. The gain spectra depend on radial profiles of the guided optical modes and the glass composition, in particular the dis

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https://doi.org/10.1109/68.974149

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Bond-orbital theory of electronic response in the alkaline earth halides

Autor: M.E. Lines

Publikováno v: Solid State Communications. 75:1023-1027

Materials characterization for optical device purposes relies heavily upon a knowledge of material compliances related to dielectric response. This paper applies the bond orbital theory of dielectric response, developed earlier for high symmetry pret

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https://doi.org/10.1016/0038-1098(90)90780-f

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The ligand coordinations and valencies of the primary iron sites in YBa2Cu3−xFexOy

Autor: M. Eibschütz, M.E. Lines

Publikováno v: Physica C: Superconductivity. 166:235-247

The now voluminous and often conflicting literature concerning the number and identification of the locations, valencies and spin quantum states adopted by iron when doped into the high- T c superconductor YBa 2 Cu 3 O y is analyzed. Although it now

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https://doi.org/10.1016/0921-4534(90)90401-y

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