Narrow-linewidth tunable laser for high-resolution spectroscopy and quantum optics

光谱学提供了对材料电子结构及其性质的非凡见解。它已经并将继续成为低维材料发展的主要推动力，使人们能够严格理解量子过程和相互作用，并指导它们在从能量转换到固态照明的电子和光电应用中的实现。近年来，我们的团队由三名光谱学家组成，在半导体量子态的光学控制，在超强光-物质耦合机制中操作的设备的开发，太赫兹电场的测量（包括真空）以及精密光谱学工具和方法的开发方面做出了开创性的贡献。为了支持这些活动作为威尔斯作为新的，我们的团队要求一个非常需要的连续波窄线宽可调钛：S配备了一个倍频器。目前在Polytechnique不可用，这一重要的光谱工具将使杂质缺陷，量子点和其他低维结构的高分辨率光谱，并揭示电子状态，其环境，集体现象的出现及其与低能激发的相互作用的关键信息。此外，这种激光器将提供解决量子光学领域中几个突出机会的方法：有效的自旋光子界面，量子机制中的激光冷却，以及有望彻底改变我们测量原子，分子，固态和生物系统的能力的量子光谱技术。通过在量子光学前沿进行最高水平的研究，该仪器将进一步提高加拿大的研究竞争力，并在吸引和培训最高质量的HQP方面发挥重要作用。

Optical spectroscopy provides extraordinary insights on the electronic structure of materials and their properties. It has been and continues to be a major driving force in the development of low-dimensional materials by enabling a rigorous understanding of quantum processes and interactions and by guiding their implementation in electronic and optoelectronic applications ranging from energy conversion to solid-state lighting. In recent years, our team composed of three spectroscopists has made seminal contributions in the optical control of quantum states in semiconductors, the development of devices operating in the ultrastrong light-matter coupling regime, the measurement of electric fields in the THz (including that of the vacuum), and the development of tools and methods for precision spectroscopy. To support these activities as wells as new ones, our team requests a highly needed continuous-wave narrow-linewidth tunable Ti:S equipped with a frequency doubler. Currently unavailable at Polytechnique, this important spectroscopy tool will enable high-resolution spectroscopy on impurity defects, quantum dots, and other low-dimensional structures and reveal critical information on electronic states, their environment, the emergence of collective phenomena, and their interactions with low-energy excitations. Furthermore, this laser will provide the means to address several outstanding opportunities in the field of quantum optics: efficient spin-photon interfaces, laser cooling in the quantum regime, and quantum spectroscopy techniques promising to revolutionize our ability to measure atomic, molecular, solid-state, and biological systems. By enabling research of the highest caliber at the forefront in quantum optics, this instrument will serve to further enhance Canada's research competitiveness and play an important role in attracting and training HQP of the highest quality.