News & Updates

Paper Alert! We show that subwavelength cavities patterned at a metal–dielectric interface can efficiently launch and shape in-plane phonon polaritons in hexagonal boron nitride, acting as planar polaritonic lenses that control wavefront geometry. By tailoring cavity shapes, we achieve arbitrary focusing - including deep-subwavelength confinement down to λ/70—providing a fabrication-compatible route to mid-infrared polaritonic lenses, wavefront shapers, and metasurfaces witho

Paper Alert! Strongly correlated insulating and superconducting states in moiré graphene remain poorly understood, with growing evidence that electrons may simultaneously behave as localized and extended states. Using local photothermoelectric measurements in symmetrically twisted trilayer graphene, we observe anomalous Seebeck oscillations and photovoltage signatures that deviate from conventional transport theory, pointing to heavy-fermion–like behavior in topological flat

Bogdan and Petr to present at the APS March Meeting: Bogdan: " Launching focused phonon-polaritons via hexagonal boron nitride...

New preprint on ArXiv! In this work, we explore a new method to launch, focus, and spatially confine phonon-polaritons native to...

Xuanpu and Bogdan presented at the Annual COSE Research Horizon Symposium .

Petr presented at Condensed Matter Seminar at UT Dallas.

Bogdan gave a presentation at Controlling Low DImensional Quantum Systems , held by the University of Notre Dame. Link to the preprint...

Our work on imaging the second-order superlattices using cryogenic near-filed photovoltage nanscopy has been published in Nature...

Glove box installed! Our glovebox with inert gas atmosphere and integrated 2D materials transfer setup has been successfully installed.

Cryogenic scattering type (s)-SNOM has been installed and ready for IR nano-imaging.

Lab renovation completed. We have our own space to work!

Som Subhra Guria joins the lab as a graduate student researcher. Welcome, Som!