标题：The near-infrared waveguide properties of an LGS crystal formed by swift Kr8+ion irradiation
作者：Zhou, Yu-Fan ;Liu, Peng ;Liu, Tao ;Zhang, Lian ;Sun, Jian-Rong ;Wang, Zhi-Guang ;Wang, Xue-Lin
作者机构：[Zhou, Yu-Fan ;Liu, Peng ;Liu, Tao ;Zhang, Lian ;Wang, Xue-Lin ] School of Physics, Key Laboratory of Particle Physics and Particle Irradiation (MOE), 更多
来源：Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
摘要：In this work, we report on the optical properties in the near-infrared region of a LGS crystal planar waveguide formed by swift heavy ion irradiation. The planar optical waveguide in a LGS crystal was fabricated by 330 MeV Kr8+-ion implantation at a fluence of 1 × 1012cm-2. The initial beam had an energy of 2.1 GeV and was slowed down by passing it through a 259 μm thick Al foil. The guided mode was measured using a prism coupler at a wavelength of 1539 nm. The near-field intensity distribution of the mode was recorded by a CCD camera using the end-face coupling method. The FD-BPM was used to simulate the guided mode profile. The lattice damage induced by SHI irradiation in the LGS crystal was studied using micro-Raman spectroscopy. The Raman spectra are consistent with the stopping power distributions of the Kr8+ions simulated by SRIM and with the micro-photograph of the waveguide taken by a microscope using polarized light. © 2013 Elsevier B.V. All rights reserved.