Jess and Ying went to Marburg last week to attend the Optical Terahertz Science and Technology (OTST) 2024! Ying presented a poster on her terahertz spectroscopy work on zinc phosphide thin films for solar cell applications. Jess gave an invited talk on terahertz spectroscopy and microscopy of topological materials! We had a great time networking and made lots of new collaborations.