Experimental Progress Towards Ultracold Indium

Ultracold gasses of elements in Main Group III (Group 13) of the Periodic Table, also known as "triel elements," offer exciting possibilities for quantum matter science and quantum simulation. To realize this, we designed and implemented an experimental apparatus to cool indium to approximately 10 μK. This included a vacuum chamber, a magneto-optical trap (MOT), and frequency-stabilized laser systems to drive the necessary atomic transitions. Additionally, many components, such as external cavity diode lasers and electro-optic modulators, were designed and constructed in-house. We report our progress towards the creation of an indium MOT. Additionally, we detail our progress on further cooling the atoms to the few-μK level using narrow-line cooling on the 284 nm intercombination transition. Finally, we outline the next steps which will enable the creation of the first triel element Bose-Einstein Condensate