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physics.optics2025
Electron hopping induced phonon pumping in opto-mechanical molecular nanocavities
Yu Bai, Ilya Razdolski, Zhizi Guan +5
Plasmonic molecular nanojunctions exhibit opto-mechanical coupling at the nanoscale, enabling intertwined optical, vibrational and electronic phenomena. Here, we demonstrate plasmo…
physics.optics2025
Hot-electron-injection-induced symmetry breaking in bilayer MoS probed by second-harmonic generation
Zhizi Guan, Zhiwei Peng, David J. Srolovitz +2
Symmetry governs the selection rules of light-matter interactions in crystalline materials, making symmetry manipulation a powerful tool for tuning their optical properties. Here,…
physics.optics2024
Strain-Enabled Giant Second-Order Susceptibility in Monolayer WSe
Zhizi Guan, Yunkun Xu, Junwen Li +3
Monolayer WSe (ML WSe) exhibits a high second-harmonic generation (SHG) efficiency under single 1-photon (1-p) or 2-photon (2-p) resonant excitation conditions due to enhan…