项目名称: 基于光学参量振荡器的可调谐柱矢量光束的产生
项目编号: No.61308056
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 无线电电子学、电信技术
项目作者: 何广源
作者单位: 中山大学
项目金额: 25万元
中文摘要: 柱矢量光束具有非常特殊的偏振性质,近年成为国内外研究的热点,并已经在粒子加速、材料加工、高分辨成像、光镊等领域得到了应用。此前的研究主要关注单一波长的柱矢量光束的产生,并没有考虑其调谐特性。本项目将创新性地使用光学参量振荡器(OPO)产生可调谐的柱矢量光束。我们拟使用OPO,产生可调谐的厄米高斯光束,并通过相干合成系统,获得可调谐的柱矢量激光。进一步,我们采用90度图像旋转腔的OPO,将合成系统与谐振腔融合起来,以使系统更加紧凑。鉴于目前对可调谐的柱矢量光束的研究处于起步阶段,本项目的研究将可以拓宽柱矢量光束的波长范围,大大促进柱矢量光束的应用发展。可以预见,这将是一个具有广阔应用前景的研究课题。
中文关键词: 柱矢量光束;非线性频率转换;高功率;;
英文摘要: Due to the interesting properties and potential applications of cylindrical vector (CV) beams,there has been a rapid increase of studies on CV beams. The CV beams have been used in many fields,such as particle acceleration, material processing, laser microscopy and optical trapping. Previous researches are focused on the generation of CV beam at a specific wavelength. This project purposes to produce tunable CV beams. First, Optical parametric oscillators (OPO) are intended to be used to generate tunable Hermite-Gaussian beams. Then tunable CV beams can be obtained by interfering with the Hermite-Gaussian beams. Further, in order to compact the system,OPOs with the image-rotating resonator will be used to integrate the synthesis system and the resonator. Generation of tunable CV beams are in its infancy at the moment. This project will broaden the wavelength range of the cylindrical vector beam and contribute greatly to the development of its application.
英文关键词: Cylindrical vector beams;Nonlinear frequency conversion;High power;;