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Title: An FBG Optical Approach to Thermal Expansion Measurements under Hydrostatic Pressure

We report on an optical technique for measuring thermal expansion and magnetostriction at cryogenic temperatures and under applied hydrostatic pressures of 2.0 GPa. Optical fiber Bragg gratings inside a clamp-type pressure chamber are used to measure the strain in a millimeter-sized sample of CeRhIn 5. We describe the simultaneous measurement of two Bragg gratings in a single optical fiber using an optical sensing instrument capable of resolving changes in length [dL/L = (L- L 0)/L 0] on the order of 10 -7. Our results demonstrate the possibility of performing high-resolution thermal expansion measurements under hydrostatic pressure, a capability previously hindered by the small working volumes typical of pressure cells.
Authors:
ORCiD logo [1] ;  [1] ;  [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-17-28944
Journal ID: ISSN 1424-8220
Grant/Contract Number:
AC52-06NA25396
Type:
Published Article
Journal Name:
Sensors
Additional Journal Information:
Journal Volume: 17; Journal Issue: 11; Journal ID: ISSN 1424-8220
Publisher:
MDPI AG
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Material Science
OSTI Identifier:
1422240
Alternate Identifier(s):
OSTI ID: 1409792

Rosa, Priscila Ferrari Silveira, Thomas, Sean Michael, Balakirev, Fedor Fedorovich, Betts, Jonanthan Bobby, Seo, Soonbeom, Bauer, Eric Dietzgen, Thompson, Joe David, and Jaime, Marcelo. An FBG Optical Approach to Thermal Expansion Measurements under Hydrostatic Pressure. United States: N. p., Web. doi:10.3390/s17112543.
Rosa, Priscila Ferrari Silveira, Thomas, Sean Michael, Balakirev, Fedor Fedorovich, Betts, Jonanthan Bobby, Seo, Soonbeom, Bauer, Eric Dietzgen, Thompson, Joe David, & Jaime, Marcelo. An FBG Optical Approach to Thermal Expansion Measurements under Hydrostatic Pressure. United States. doi:10.3390/s17112543.
Rosa, Priscila Ferrari Silveira, Thomas, Sean Michael, Balakirev, Fedor Fedorovich, Betts, Jonanthan Bobby, Seo, Soonbeom, Bauer, Eric Dietzgen, Thompson, Joe David, and Jaime, Marcelo. 2017. "An FBG Optical Approach to Thermal Expansion Measurements under Hydrostatic Pressure". United States. doi:10.3390/s17112543.
@article{osti_1422240,
title = {An FBG Optical Approach to Thermal Expansion Measurements under Hydrostatic Pressure},
author = {Rosa, Priscila Ferrari Silveira and Thomas, Sean Michael and Balakirev, Fedor Fedorovich and Betts, Jonanthan Bobby and Seo, Soonbeom and Bauer, Eric Dietzgen and Thompson, Joe David and Jaime, Marcelo},
abstractNote = {We report on an optical technique for measuring thermal expansion and magnetostriction at cryogenic temperatures and under applied hydrostatic pressures of 2.0 GPa. Optical fiber Bragg gratings inside a clamp-type pressure chamber are used to measure the strain in a millimeter-sized sample of CeRhIn5. We describe the simultaneous measurement of two Bragg gratings in a single optical fiber using an optical sensing instrument capable of resolving changes in length [dL/L = (L- L0)/L0] on the order of 10-7. Our results demonstrate the possibility of performing high-resolution thermal expansion measurements under hydrostatic pressure, a capability previously hindered by the small working volumes typical of pressure cells.},
doi = {10.3390/s17112543},
journal = {Sensors},
number = 11,
volume = 17,
place = {United States},
year = {2017},
month = {11}
}