用于定制自由空间波束成形的光栅设计方法
Grating design methodology for tailored free-space beam-forming
AI总结：
本文提出一种无需数值优化的光栅耦合器自由空间波束成形设计方法，可在紫外与可见光波段实现衍射极限聚焦及高阶高斯光束，并兼顾精度、轮廓与波长灵活性。
摘要：
受离子阱物理应用的推动，我们提出了一种利用光栅耦合器实现任意轮廓自由空间波束成形的设计方法，该方法无需数值优化。我们通过一系列采用不同波长和波导材料的光栅展示了其能力，这些光栅是为所有光学元件完全集成的新型离子阱设计的，涵盖紫外和可见光波长。我们展示了不受波导锥形几何形状、发射角或焦距高度限制的衍射极限聚焦设计，以及聚焦的高阶 Hermite-Gaussian（厄米-高斯）光束和 Laguerre-Gaussian（拉盖尔-高斯）光束。进一步的研究考察了光栅长度和锥角对波束成形的影响，表明孔径光束中焦移的重要性。所提出的设计方法能够高效设计波束成形光栅，兼具原子系统应用所需的精度以及波束轮廓和工作波长方面的灵活性。
英文摘要：
We present a design methodology for free-space beam-forming with general profiles from grating couplers which avoids the need for numerical optimization, motivated by applications in ion trap physics. We demonstrate its capabilities through a variety of gratings using different wavelengths and waveguide materials, designed for new ion traps with all optics fully integrated, including UV and visible wavelengths. We demonstrate designs for diffraction-limited focusing without restriction on waveguide taper geometry, emission angle, or focus height, as well as focused higher order Hermite-Gaussian and Laguerre-Gaussian beams. Additional investigations examine the influence of grating length and taper angle on beam-forming, indicating the importance of focal shift in apertured beams. The design methodology presented allows for efficient design of beamforming gratings with the accuracy as well as the flexibility of beam profile and operating wavelength demanded by application in atomic systems.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
