Growth and optical waveguide fabrication in spinel MgGa2O4 crystal

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:409

Article; Proceedings Paper

Wang, Liang-Ling^1,4  Cui, Xiao-Jun¹  Rensberg, Jura²  Wu, Kui³  Wesch, Werner²  Wendler, Elke² 

[1] Univ Jinan, Sch Phys & Technol, Jinan 250022, Shandong, Peoples R China

[2] Friedrich Schiller Univ Jena, Inst Festkorperphys, Max Wien Pl 1, D-07743 Jena, Germany

[3] Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Key Lab Funct Mat & Devices Special Environm, 40-1 South Beijing Rd, Urumqi 830011, Peoples R China

[4] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China

关键词: Ion implantation;    Optical waveguide;    Floating zone method;   

DOI  :  10.1016/j.nimb.2017.05.023

来源: Elsevier

【 摘 要 】

We report on optical waveguide fabrication in a spinel MgGa2O4 crystal by 6.0 MeV carbon ion implantation at a fluence of 2 x 10(15) ions/cm(2) for the first time to our knowledge. The MgGa2O4 crystal was grown by the floating zone method. The refractive index profile reconstructed by reflectivity calculation method showed that the MgGa2O4 waveguide is a typical barrier waveguide. The typical barrier-shaped refractive index profile is attributed mainly to the nuclear energy deposition of the incident carbon ions into the MgGa2O4 crystal. By performing end-coupling measurements and using the beam propagation method (BPM) for the analysis of the observed modes, it can be concluded that the modes can be confined inside the waveguide. (C) 2017 Elsevier B.V. All rights reserved.

【 授权许可】

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