Design of the ALPS II optical system
Design of the ALPS II optical system
复制标题
ALPS II光学系统的设计
DOI：
10.1016/j.dark.2022.100968
复制
发表时间：
2022
影响因子：
5.5
通讯作者：
Kozlowski, T.
中科院分区：
文献类型：
--
作者：
Diaz Ortiz, M.;Gleason, J.;Grote, H.;Hallal, A.;Hartman, M.T.;Hollis, H.;Isleif, K.-S.;James, A.;Karan, K.;Kozlowski, T.
任意光粒子搜索II（ALPS II）是目前正在德国汉堡的DESY建造的一个实验，它将使用光穿透墙（LSW）的方法来搜索轴子样粒子。ALPSII代表了这些类型实验的重要一步，因为它将使用24个超导偶极磁体，沿着双高精细度，122米长的光学腔。本文给出了实现30多年前提出的想法的第一个全面配方，即在墙之前和之后使用光学腔来增加再生光子信号的功率。这一概念将使实验对轴子粒子和光子之间的耦合的灵敏度达到gαγγ= 2× 10− 11 GeV − 1，质量低于0.1 meV，比以前的实验室实验灵敏度高出三个数量级。的布局和定义ALPSII的主要组成部分进行了讨论，沿着与计划达到设计灵敏度。还首次提出了一套子系统的顶层要求，包括腔本征模的相干性和空间模匹配要求。随附的论文（Hallal等人[1]）对外差检测方案进行了更深入的描述，这是ALPS II中将实现的两个独立检测系统中的第一个。spector@ desy. de
The Any Light Particle Search II (ALPS II) is an experiment currently being built at DESY in Hamburg, Germany, that will use a light-shining-through-a-wall (LSW) approach to search for axion-like particles. ALPSII represents a significant step forward for these types of experiments as it will use 24 superconducting dipole magnets, along with dual high-finesse, 122 m long optical cavities. This paper gives the first comprehensive recipe for the realization of the idea, proposed over 30 years ago, to use optical cavities before and after the wall to increase the power of the regenerated photon signal. This concept will allow the experiment to achieve a sensitivity to the coupling between axion-like particles and photons down to gαγγ= 2× 10− 11GeV− 1 for masses below 0.1 meV, more than three orders of magnitude beyond the sensitivity of previous laboratory experiments. The layout and main components that define ALPSII are discussed along with plans for reaching design sensitivity. A set of top level requirements for the subsystems is also provided for the first time and includes the requirements on the coherence and spatial mode matching of the cavity eigenmodes. An accompanying paper (Hallal, et al [1]) offers a more in-depth description of the heterodyne detection scheme, the first of two independent detection systems that will be implemented in ALPS II.∗ aaron. spector@ desy. de