TY - JOUR
T1 - Determination of the Faraday rotation perpendicular to the optical axis in uniaxial CeF3 crystal by using the Generalized-High Accuracy Universal Polarimeter
AU - Nakagawa, Kenta
AU - Asahi, Toru
N1 - Funding Information:
We thank Prof. Dr. Kiyoshi Shimamura for growing the single crystals of CeF3. We thank Prof. Dr. Bart Kahr (New York University, USA), Prof. Dr. Takuro Katsufuji (Waseda University, Japan) and Dr. Hirohiko Murakami (ULVAC Company, Japan) for their fruitful discussions and comments. This study was financially supported by the Program for Leading Graduate Program in Science and Engineering, Waseda University, from the Ministry of Education, Sports, Culture Science and Technology, Japan, as well as the Grant for Special Research Projects B, Waseda University. This study is a research projects “Energy-Next” and “Nano-energy” of Waseda Research Institute for Science and Engineering, Waseda University.
Publisher Copyright:
© 2019, The Author(s).
PY - 2019/12/1
Y1 - 2019/12/1
N2 - Many single crystals have been developed and commercialized for optical isolators. However, optical isolator materials have been limited to isotropic crystals or to the isotropic direction (optic axis) of anisotropic crystals. This study investigates the wavelength dependences of linear birefringence, linear dichroism, Faraday rotation and magnetic-circular dichroism in a single crystal rare-earth fluoride, namely CeF3. Measurements were made in the direction parallel and perpendicular to the optic axis under an applied magnetic field. The magnetic field was generated by Nd-Fe-B magnets installed in the generalized-high accuracy universal polarimeter (G-HAUP). The first application of G-HAUP to a magneto-optical material is presented. In the CeF3 crystal, the Verdet constants along directions parallel and perpendicular to the optic axis were positive over the measured wavelength region (300–680 nm), and their magnitudes were nearly equal. The success in the accurate measurement on Faraday rotation along anisotropic directions has opened the way to study on optical isolators along the direction other than optic axis.
AB - Many single crystals have been developed and commercialized for optical isolators. However, optical isolator materials have been limited to isotropic crystals or to the isotropic direction (optic axis) of anisotropic crystals. This study investigates the wavelength dependences of linear birefringence, linear dichroism, Faraday rotation and magnetic-circular dichroism in a single crystal rare-earth fluoride, namely CeF3. Measurements were made in the direction parallel and perpendicular to the optic axis under an applied magnetic field. The magnetic field was generated by Nd-Fe-B magnets installed in the generalized-high accuracy universal polarimeter (G-HAUP). The first application of G-HAUP to a magneto-optical material is presented. In the CeF3 crystal, the Verdet constants along directions parallel and perpendicular to the optic axis were positive over the measured wavelength region (300–680 nm), and their magnitudes were nearly equal. The success in the accurate measurement on Faraday rotation along anisotropic directions has opened the way to study on optical isolators along the direction other than optic axis.
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U2 - 10.1038/s41598-019-54174-2
DO - 10.1038/s41598-019-54174-2
M3 - Article
C2 - 31804512
AN - SCOPUS:85076015560
SN - 2045-2322
VL - 9
JO - Scientific reports
JF - Scientific reports
IS - 1
M1 - 18453
ER -