Applications of Super-enhanced Two-photon Stimulated Emission Processes

该计划的主要目标是开发在不同制度下工作的双光子激光器，并基于一种新技术，用于超级增强激光驱动钾中的双光子受激发射过程。研究人员正在使用该设备探索宽区域双光子激光器的工作特性，该激光器有望在黑暗背景中自发形成二维明亮的局部结构（横向空间孤子），这是当前非线性和激光动力学社区感兴趣的一个主题。他们还在研究该系统是否显示量子图像，即量子相关的空间结构。此外，研究人员正在进行实验，以确定激光器的单横模版本是否能够产生明亮的偏振纠缠双光束，这可能在量子光刻等应用中有用。在该项目的最后阶段，研究人员正在使用超高精细度光学谐振器来实现双光子过程的强原子-腔耦合机制，这可能会在多光子量子态工程和双光子态的受控生成中找到应用。这项研究是在一个跨学科的环境中进行的，成功地招募和留住了女科学家。国际合作是该计划的另一个重要教育方面。

The primary goal of this program is to develop two-photon lasers that operate in different regimes and that are based on a new technique for super-enhancing the two-photon stimulated emission process in laser driven potassium. The researchers are using this device to explore the operating characteristics of a broad-area two-photon laser that is expected to spontaneously form two-dimensional bright localized structures in a dark background (transverse spatial solitons), a topic of current interested in the nonlinear and laser dynamics communities. They are also investigating whether the system displays quantum images, that is, quantum-correlated spatial structures. In addition, the researchers are performing experiments to determine whether the single-transverse-mode version of the laser is capable of generating bright polarization-entangled twin beams of light, which may be useful in application such as quantum lithography, for example. In the final phase of the project, the researchers are using an ultra-high-finesse optical resonator to head toward the regime of strong atom-cavity coupling for two-photon processes, which may find applications in multiple photon quantum state engineering and the controlled generation of two-photon states. The research is being conducted in an interdisciplinary environment that has been successful in recruiting and retaining women scientists. An international collaboration is another important educational aspect of the program.