Abstract
The temperature-dependence coefficient of Brillouin frequency shift (BFS) in perfluorinated graded-index polymer optical fibers is known to change drastically, because of the glass transition, at a certain critical temperature (T<inf>c</inf>), above which the BFS becomes more sensitive to temperature. In this paper, we demonstrate that the T<inf>c</inf> value can be adjusted by varying the dopant concentration, which is originally used to form the graded-index profile in the core region. Furthermore, we show that the temperature sensitivity of the BFS is enhanced in the presence of dopant probably because the temperature sensitivity of Young's modulus is increased. The results indicate a big potential of the temperature sensors based on Brillouin scattering with an extremely high sensitivity in a specific desired temperature range.
| Original language | English |
|---|---|
| Article number | 144505 |
| Journal | Journal of Applied Physics |
| Volume | 117 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - 2015 Apr 14 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Temperature dependence of Brillouin frequency shift in polymers controlled by plasticization effect. / Minakawa, Kazunari; Koike, Kotaro; Du, Qiming; Hayashi, Neisei; Koike, Yasuhiro; Mizuno, Yosuke; Nakamura, Kentaro.
In: Journal of Applied Physics, Vol. 117, No. 14, 144505, 14.04.2015.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Temperature dependence of Brillouin frequency shift in polymers controlled by plasticization effect
AU - Minakawa, Kazunari
AU - Koike, Kotaro
AU - Du, Qiming
AU - Hayashi, Neisei
AU - Koike, Yasuhiro
AU - Mizuno, Yosuke
AU - Nakamura, Kentaro
PY - 2015/4/14
Y1 - 2015/4/14
N2 - The temperature-dependence coefficient of Brillouin frequency shift (BFS) in perfluorinated graded-index polymer optical fibers is known to change drastically, because of the glass transition, at a certain critical temperature (Tc), above which the BFS becomes more sensitive to temperature. In this paper, we demonstrate that the Tc value can be adjusted by varying the dopant concentration, which is originally used to form the graded-index profile in the core region. Furthermore, we show that the temperature sensitivity of the BFS is enhanced in the presence of dopant probably because the temperature sensitivity of Young's modulus is increased. The results indicate a big potential of the temperature sensors based on Brillouin scattering with an extremely high sensitivity in a specific desired temperature range.
AB - The temperature-dependence coefficient of Brillouin frequency shift (BFS) in perfluorinated graded-index polymer optical fibers is known to change drastically, because of the glass transition, at a certain critical temperature (Tc), above which the BFS becomes more sensitive to temperature. In this paper, we demonstrate that the Tc value can be adjusted by varying the dopant concentration, which is originally used to form the graded-index profile in the core region. Furthermore, we show that the temperature sensitivity of the BFS is enhanced in the presence of dopant probably because the temperature sensitivity of Young's modulus is increased. The results indicate a big potential of the temperature sensors based on Brillouin scattering with an extremely high sensitivity in a specific desired temperature range.
UR - http://www.scopus.com/inward/record.url?scp=84928379971&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928379971&partnerID=8YFLogxK
U2 - 10.1063/1.4917533
DO - 10.1063/1.4917533
M3 - Article
AN - SCOPUS:84928379971
VL - 117
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 14
M1 - 144505
ER -