Laser wavelength meter

激光波长计是一种可以测量激光的频率或波长接近1/108的设备。我们申请资金购买最先进的波长计，其精度比我们研究小组目前可用的设备高出近100倍。** 我们研究计划的目标是通过对原子和分子的精确频率测量，发现我们已知的物理定律的有效性极限。我们目前的研究项目旨在（a）建立紧凑和便携式光学原子钟来研究引力物理，（B）测量原子共振频率的核效应，以及（c）发现宇宙物质-反物质不平衡的起源。这些项目中的每一个都使用特定的原子或分子种类：（a）钙原子和钐离子，（B）钕离子，以及（c）一氟化钡分子。这些物种中的每一种都需要一组相应的激光器，这些激光器被精确地调谐到它们的共振频率。因此，我们的研究小组目前在不同的光波长范围内运行着十几种不同的二极管激光器。这些器件中的每一个的频率（或波长）都需要仔细测量和不断控制。因此，精确的波长计是我们的研究计划迫切需要的不可或缺的工具。所要求的波长计将对我们团队的研究生产力产生直接的积极影响。它将允许我们研究小组的学生和博士后推进他们的研究项目，利用精确测量我们实验中使用的原子和分子的共振频率的能力。波长计将大大提高我们集团高素质人员（HQP）的培训能力和曝光率。我们的研究项目的成功完成将导致新颖，紧凑的原子钟，并揭示了超越标准模型的物理学，这可能是暗物质和宇宙的物质-反物质不对称性的原因。 **

A laser wavelength meter is a device that can measure the frequency or wavelength of a laser to nearly 1 part in 108. We request funding to purchase a state-of-the-art wavelength meter, with nearly 100 times better accuracy than the devices currently available in our research group. ******The goal of our research program is to discover the limits of validity of our known physical laws, through precise frequency measurements on atoms and molecules. Our current research projects aim to (a) build compact and portable optical atomic clocks to study gravitational physics, (b) measure nuclear effects on atomic resonance frequencies, and (c) discover the origin of the universe's matter-antimatter imbalance. Each of these projects uses a specific atomic or molecular species: (a) calcium atoms and samarium ions, (b) neodymium ions, and (c) barium monofluoride molecules. Each of these species requires a respective set of lasers that are precisely tuned to their resonance frequencies. As a result, our research group currently operates more than a dozen different diode lasers at a range of different optical wavelengths. The frequency (or wavelength) of each of these devices needs to be carefully measured and constantly controlled. A precise and accurate wavemeter is therefore an indispenable tool that is urgently needed for our research program.******The requested wavelength meter will have an immediate positive impact on the research productivity of our team. It will allow the students and postdoc in our research group to advance their research projects, using the capability to precisely measure the resonance frequencies of the atoms and molecules used in our experiments. The wavelength meter will substantially improve the training capacity and exposure for Highly Qualified Personnel (HQP) in our group. The successful completion of our research projects will result in novel, compact atomic clocks, and shed light on physics beyond the Standard Model that might be responsible for dark matter and the matter-antimatter asymmetry of the universe. **