Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8148659 | Journal of Crystal Growth | 2018 | 7 Pages |
Abstract
Highly transparent Yb:TbVO4 single crystal with dimensions of Ã27â¯Ãâ¯41â¯mm3 alomost without scattering defects has been successfully grown by Czochralski technique. The spectra, thermal properties and laser-induced damage threshold were investigated in detailed. The Faraday rotation (FR) measurement was carried out by means of extinction method. The Verdet constant comes up to 80â¯radâ¯mâ1â¯Tâ1 at 1064â¯nm, significantly larger than TbVO4 (58â¯radâ¯mâ1â¯Tâ1) and TGG (40â¯radâ¯mâ1â¯Tâ1) reported. Meanwhile, the as-grown crystal presents lower absorption coefficient and higher magneto-optical figure of merit at measured wavelength in comparison with TGG. Moreover, the crystal exhibits a substantially improved extinction ratio (42â¯dB) in contrast with TbVO4 (29â¯dB), and exceeds the highest value of TGG (40â¯dB). These advantages make Yb:TbVO4 a highly promising magneto-optical material candidate for optical isolators in the visible-near infrared region.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Xianchao Zhu, Heng Tu, Zhanggui Hu,