载能离子束辐照二氧化碲晶体波导的表面波声光效应

With the rapid development of integrated optoelectronics, the traditional large-scale acousto-optic device cannot be integrated in the micro-scale optical circuits. Therefore, the demand for surface-acoustic-wave (SAW) acousto-optic (AO) device becomes more and more urgent. The research of acousto-optic effect based on waveguide has important significance for SAW AO device preparation. Using ion irradiation technology and acousto-optic technology, waveguide acousto-optic effect will be researched in this project: Optical waveguides will be produced in acousto-optic crystal tellurium dioxide by ion irradiation; many theoretical and experimental methods will be used for representing and optimizing the waveguide characteristics, the waveguide with excellent optical properties will be used in the research of the waveguide acousto-optic effect. Finally, the waveguide acousto-optic effect will be research by changing parameters, such as the thickness of waveguide layer, optical waveguide modes, frequency and power of acoustic wave and laser wavelength to improve the diffraction efficiency. The research provides a new way to fabricate waveguide acousto-optic device. It has important prospects on optical communication, optical information processing, optical sensing and display and other research fields.

随着集成光电子学的发展，传统的体型声光器件不能被集成在微纳尺寸上，所以对表面波声光器件的需求越来越紧迫。基于波导结构的声光效应研究对于表面波声光器件的制备有着重要的基础研究意义。本项目利用离子辐照技术和声光技术相结合，研究波导型声光效应：首先利用离子辐照技术在声光晶体二氧化碲上制备光波导结构；然后利用实验和理论模拟对波导特性进行表征分析，进而优化波导结构性能；通过对波导厚度、波导模式、声光作用长度、声波频率、声波功率、导光波波长等各参量进行调控，来研究波导型声光效应，提高声光衍射效率，为性能优良的波导声光器件的设计制备提供依据。本项目的研究将为波导声光器件的制备提供新思路，在光通信、光信息处理、光传感及显示等研究领域具有重要的应用前景。

随着集成光电子学的发展，传统的体型声光器件不能被集成在微纳尺寸上，所以对表面波声光调制器件的需求越来越紧迫。基于波导结构的声光效应研究对于表面波声光器件的制备有着重要的基础研究意义。本项目利用利用离子辐照技术选用多种晶体材料，制备光波导结构；然后利用实验和理论模拟对波导特性进行表征分析，通过对波导厚度、波导模式、导光波波长等各参量进行调控，进而优化波导结构性能，为性能优良的波导声光器件的设计制备提供依据。本项目的研究将为波导声光器件的制备提供新思路，在光通信、光信息处理、光传感及显示等研究领域具有重要的应用前景。