Progress Towards Laser Cooled Polyatomic Molecules for Beyond-Standard-Model Physics Searches

Recent work in molecular laser cooling has extended the technique to polyatomic species. Until this point, however, full 3D laser cooling has been limited to light molecules, which have limited use in probes of fundamental physics. In this poster, we report progress towards cooling and trapping SrOH molecules for probes of the electron permanent electric dipole moment and ultralight dark matter. We present high-resolution robvibrational spectroscopy identifying the dominant vibrational leakage channels in the laser cooling process. We also report progress towards transverse cooling a beam of SrOH and full 3D cooling and trapping of the species. Finally, we discuss the planned steps towards creating an ultracold sample suitable for precision measurements.