The Quantum Materials Spectroscopy Research Platform (QMSP) is mainly devoted to the comprehensive optical characterization and modulation of quantum states in two-dimensional (2D) quantum materials. Concentrating on the visible-to-infrared spectral regimes, the platform integrates state-of-the-art ultrafast laser technologies with high-precision microscopy to probe the intrinsic physical properties of quantum materials. It is specifically engineered to bridge the gap between fundamental light-matter interaction studies and the development of functional quantum devices. By leveraging advanced pump-probe spectroscopy and spatially resolved optical mapping, the platform investigates the complex interplay among electronic, spin, and lattice degrees of freedom, aiming to unravel novel phenomena such as transient non-equilibrium phases, excitonic insulators, and topological phase transitions.

Platform Level & Positioning

The platform currently enables in-situ multi-dimensional characterization under extreme and tunable environments, including cryogenic temperatures down to 2 K, high-strength magnetic fields, and precisely controlled electrostatic gating or strain. These capabilities allow for the systematic exploration of quantum phase diagrams, highlighting the platform’s unique capacity to bridge fundamental research with practical application exploration. By integrating ultrafast spectroscopy with tunable multi-field control, the QMSRP provides critical experimental support for the development of quantum devices, thereby accelerating the realization of next-generation optoelectronic integration and functional quantum technologies.

Representative Achievements

The platform team and its collaborators have innovatively integrated graphene onto the facet of a single-mode optical fiber. By exploiting the ultrafast hot-electron emission of graphene, they developed a highly stable femtosecond-pulsed electron source, addressing the long-standing challenge of temporal resolution in fiber-based electron emitters. The related work, titled “Stable ultrafast graphene hot-electron source on optical fiber,” was published in Nature Communications.