Explore advanced spectroscopic techniques and their applications in molecular analysis through this 25-minute lecture by Daeheum Cho from the QCHEM LAB at KNU. Delve into the intricacies of Nonlinear UV Molecular Spectroscopy, X-ray Chiral Dichroism spectroscopy, and the manipulation of Conical Intersections using Optical Cavities. Gain insights into cutting-edge methods for studying molecular structures, chirality, and excited-state dynamics, enhancing your understanding of modern analytical chemistry and quantum chemical phenomena.