Fast Infrared Detection for Multi-Messenger Astronomy

After the detection of the gravitational wave GW170817 from a binary neutron star merger and the simultaneous detection of the electromagnetic signals, multi-messenger astronomy enters a new era. Furthermore, the GRBs (Gamma-Ray Bursts) and the mysterious FRBs (Fast Radio Bursts) have sparked interest in the development of new detectors and telescopes dedicated to the time-domain astronomy across all the electromagnetic spectrum. Fast Infra-red Bursts (FIRBs) have been relatively understudied, often due to the lack of appropriate tools for observation and analysis. In this scenario, the present contribution proposes a new detection system for mid-infrared ground-based telescopes. Experience developed in the diagnostics for lepton circular accelerators has been used to design temporal devices for astronomy. At SINBAD, the infrared beam line of DAFNE, the detector has acquired fast infrared pulses with 2-12 µm wavelengths and 1 ns rise times with sensitivity up to 1 photon implementing the proper amplification. A dedicated data acquisition system has been designed, including simulations for smart triggers and AI pattern recognition techniques. The classification of the most interesting transient candidates found is performed by implementing an off-line fast instability analysis derived from accelerator physics techniques. This contribution aims to be a step toward a feasibility study report.