Ontology highlight
ABSTRACT:
SUBMITTER: Ginsberg JS
PROVIDER: S-EPMC10673846 | biostudies-literature | 2023 Nov
REPOSITORIES: biostudies-literature
Ginsberg Jared S JS Jadidi M Mehdi MM Zhang Jin J Chen Cecilia Y CY Tancogne-Dejean Nicolas N Chae Sang Hoon SH Patwardhan Gauri N GN Xian Lede L Watanabe Kenji K Taniguchi Takashi T Hone James J Rubio Angel A Gaeta Alexander L AL
Nature communications 20231124 1
Polar crystals can be driven into collective oscillations by optical fields tuned to precise resonance frequencies. As the amplitude of the excited phonon modes increases, novel processes scaling non-linearly with the applied fields begin to contribute to the dynamics of the atomic system. Here we show two such optical nonlinearities that are induced and enhanced by the strong phonon resonance in the van der Waals crystal hexagonal boron nitride (hBN). We predict and observe large sub-picosecond ...[more]