4 papers
Terahertz nanoscopy of quantum-geometric photovoltaics in bilayer graphene
Bogdan Borodin, Jiangxu Li, Xuanpu Zhang +7
The bulk photovoltaic effect (BPVE) provides a direct link between quantum geometry and nonlinear light-matter interactions, yet conventional far-field measurements cannot disentan…
Probing Azimuthal Anatomy of Hyperbolic Whispering Gallery Modes in hBN
Bogdan Borodin, Samyobrata Mukherjee, Shivaksh Rawat +8
Scattering-type scanning near-field optical microscopy (s-SNOM) is a powerful tool for investigating polaritonic modes. However, an inherent limitation of this technique is that ex…
Launching Focused and Spatially Confined Phonon-Polaritons in Hexagonal Boron Nitride
Bogdan Borodin, Sergey Lepeshov, Kenji Watanabe +2
Phonon-polaritons offer significant opportunities for low-loss, subdiffractional light guiding at the nanoscale. Despite extensive efforts to enhance control in polaritonic media,…
Mie-resonant silicon waveguide for efficient coupling with excitonic emitters in InSe
Timofey V. Antipov, Alexandra D. Gartman, Dmitry N. Gulkin +7
Enhancement of radiative coupling efficiency between out-of-plane excitonic emitters in an indium selenide (InSe) film and an integrated waveguide formed by silicon (Si) Mie-resona…