Optical design and optimized readout of a light shining through a wall experiment in particle physics

尽管它取得了巨大的成功，但天体物理学观察和理论考虑表明，粒子物理学标准模型的扩展是必要的。在低能区（m<<1eV），光穿过壁（LSW）实验寻找弱相互作用的细粒子。ALPS-I是首次使用谐振光腔实现目前LSW实验最佳灵敏度的LSW实验之一。未来的LSW实验，如ALPS-II，将使用第二个光学谐振器来进一步提高灵敏度。这是一项开发和测试光学设计的建议，该设计允许两个LSW腔的共线操作。此外，我们将通过理论研究和实验来比较未来LSW实验中两种相互竞争的读出方法，以确定它们的基本和技术局限性。

Despite its enormous success, astrophysical observations and theoretical considerations indicate, that extensions of the Standard Model of particle physics are required. In the low energy region (m<<1eV) Light shining through a wall (LSW) experiments perform searches for weakly interacting slim particles. ALPS-I is one of those LSW experiments which, for the first time, used a resonant optical cavity to achieve the currently best sensitivity of LSW experiments. Future LSW experiments, like e.g. ALPS-II, will use a second optical resonator to further improve their sensitivities. This is a proposal to develop and test an optical design that allows the required collinear operation of two LSW cavities. Furthermore we will compare two competing readout methods for future LSW experiments by a theoretical study and experiments to identify their fundamental and technical limitations.