# ALPSII Status Report

## TL;DR

ALPS II is an experimental setup using optical cavities to search for axion-like particles below 0.1 meV, with recent progress in optics, detection, and infrastructure development.

## Contribution

This report details recent advancements in the optical system, photon detection, and infrastructure for the ALPS II experiment, advancing the search for axion-like particles.

## Key findings

- Progress in optical cavity development
- Enhanced single photon detection schemes
- Preparation of magnets and infrastructure

## Abstract

ALPS II is a light shining through a wall style experiment that will use optical cavities to resonantly enhance the coupling between photons and axion-like particles in the mass range below 0.1 meV. In the last year there has been significant experimental progress in the development of the optical system and the single photon detection schemes, as well as progress related to the preparation of the magnets and the on site infrastructure.