scholarly journals Attenuation measurements in single-crystal sapphire fiber via Raman scattering intensity

2018 ◽  
Author(s):  
Bo Liu ◽  
Michael P. Buric ◽  
Zhihao Yu ◽  
Daniel Homa ◽  
Cary Hill ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Crystal ◽  
Scattering Intensity ◽  
Single Crystal Sapphire ◽  
Sapphire Fiber

Fiber-optic Raman probe based on single-crystal sapphire fiber

2012 ◽  
Author(s):  
Tongqing Liu ◽  
Ming Han ◽  
Cody Raml ◽  
Dennis R. Alexander ◽  
Xiangnan He ◽  
...  
Keyword(s):  
Single Crystal ◽  
Fiber Optic ◽  
Single Crystal Sapphire ◽  
Raman Probe ◽  
Sapphire Fiber

Ultrasonic determination of single crystal sapphire fiber modulus

1995 ◽  
Vol 14 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Haydn N. G. Wadley ◽  
Yichi Lu ◽  
Jeffrey A. Goldman
Keyword(s):  
Single Crystal ◽  
Ultrasonic Determination ◽  
Single Crystal Sapphire ◽  
Sapphire Fiber

scholarly journals Raman scattering in single-crystal sapphire at elevated temperatures

2017 ◽  
Vol 56 (31) ◽  
pp. 8598 ◽  
Author(s):  
Juddha Thapa ◽  
Bo Liu ◽  
Steven D. Woodruff ◽  
Benjamin T. Chorpening ◽  
Michael P. Buric
Keyword(s):  
Raman Scattering ◽  
Single Crystal ◽  
Elevated Temperatures ◽  
Single Crystal Sapphire

scholarly journals Fiber Bragg grating fabricated in micro-single-crystal sapphire fiber

2017 ◽  
Vol 43 (1) ◽  
pp. 62 ◽  
Author(s):  
Shuo Yang ◽  
Daniel Homa ◽  
Gary Pickrell ◽  
Anbo Wang
Keyword(s):  
Single Crystal ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Single Crystal Sapphire ◽  
Sapphire Fiber

scholarly journals Обертонное комбинационное рассеяние света в монокристаллах танталата лития

2019 ◽  
Vol 127 (10) ◽  
pp. 532
Author(s):  
С.Д. Абдурахмонов ◽  
В.С. Горелик
Keyword(s):  
Raman Scattering ◽  
Single Crystal ◽  
Single Crystals ◽  
Raman Spectra ◽  
Spectral Range ◽  
Lithium Tantalate ◽  
Raman Scattering Spectrum ◽  
Scattering Intensity ◽  
Scattering Spectrum ◽  
Scattering Geometry

AbstractOvertone bands in the spectral range of 1300−1920 cm^–1 have been found in Raman scattering spectrum of lithium tantalate single crystals. The Raman spectra were recorded in the 180° scattering geometry. The intensity of overtone transitions differs for different samples and, in some cases, is comparable with the Raman scattering intensity at the fundamental modes of a lithium tantalate single crystal.

Solid Solubility and Diffusivity in an Alumina/Zirconia System

1994 ◽  
Vol 365 ◽  
Author(s):  
Matithew A. Stough ◽  
John R. Hellmann
Keyword(s):  
Single Crystal ◽  
Diffusion Coefficients ◽  
Solid Solubility ◽  
Transient Liquid Phase ◽  
Sapphire Surface ◽  
Local Dissolution ◽  
Single Crystal Sapphire ◽  
Secondary Ion ◽  
Ceramic Matrices ◽  
Sapphire Fiber

ABSTRACTPolycrystalline zirconia-coated single crystal sapphire fiber displays reconstruction of the sapphire surface in regions of contact with zirconia grains. This is a concern where ZrO2 -coated sapphire fiber is desired for reinforcement of ceramic matrices. Previous work has demonstrated pitting is partially attributed to impurity-induced transient liquid phase formation with local dissolution of alumina; however, the extent of reconstruction witnessed via microscopy suggests that other mechanisms are active. The present study has addressed the issue of solid solubility and interdiffusivity to more thoroughly understand the solid state mechanisms contributing to pitting. Single crystal sapphire and zirconia were ion implanted with zirconium and yttrium, and aluminum, respectively, and then subjected to diffusion anneals at 1200° - 1600°C to study redistribution of implanted cations. Secondary Ion Mass Spectroscopy (SIMS) was used to profile the redistribution of implanted ions for measurement of diffusion coefficients and solubility limits after heat treatments. The results will offer a significant set of data on interface stability in the alumina/zirconia system.

Single-crystal sapphire fiber-based strain sensor for high-temperature applications

2003 ◽  
Vol 21 (10) ◽  
pp. 2276-2283 ◽  
Author(s):  
Hai Xiao ◽  
Jiangdong Deng ◽  
G. Pickrell ◽  
R.G. May ◽  
Anbo Wang
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Strain Sensor ◽  
Single Crystal Sapphire ◽  
Sapphire Fiber ◽  
Temperature Applications

Raman spectroscopy based on a single-crystal sapphire fiber

2011 ◽  
Vol 36 (7) ◽  
pp. 1287 ◽  
Author(s):  
Cody Raml ◽  
Xiangnan He ◽  
Ming Han ◽  
Dennis R. Alexander ◽  
Yongfeng Lu
Keyword(s):  
Raman Spectroscopy ◽  
Single Crystal ◽  
Single Crystal Sapphire ◽  
Sapphire Fiber
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