Research

We are interested in how quantum coherence and nonequilibrium dynamics evolve in low-dimensional systems, where reduced dimensionality and strong light–matter interactions fundamentally reshape energy and charge flow. A central goal of our work is to understand what determines the lifetime and controllability of quantum states in nanoscale materials, and whether optical excitation can be used to actively manipulate these states on ultrafast timescales. We approach these questions by developing time-resolved optical spectroscopy and microscopy capable of probing dynamics under controlled environments.

We are interested in how symmetry, dimensionality, and local structure in quantum materials determine their emergent optical and electronic properties. In particular, we study how engineered symmetry breaking in low-dimensional systems gives rise to new excitonic behavior, modified optical selection rules, and nonlinear optical responses that do not exist in the bulk or isolated building blocks. These effects can be tuned through stacking, strain, and geometric distortions, providing pathways to control exciton localization and collective optical responses.

We are interested in how interactions at molecular–material interfaces reshape electronic structure and give rise to emergent optical responses that are not present in either component alone. At these interfaces, charge redistribution and coupling between molecular excitations and solid-state excitons lead to complex, often hidden, pathways for energy transfer and optical modulation. Our work aims to reveal these interactions by combining ultrafast optical spectroscopy, modeling, and data-driven analysis methods. By uncovering how interfacial coupling governs spectral response and dynamics, we seek to establish general principles for designing highly sensitive and adaptive optical sensing platforms.