465 citations · 1.2k across the 11 of their papers we have counts for
11 papers
Commensurate and Incommensurate Chern Insulators in Magic-angle Bilayer Graphene
Zaizhe Zhang, Jingxin Yang, Bo Xie +12
The interplay between strong electron-electron interaction and symmetry breaking can have profound influence on the topological properties of materials. In magic angle twisted bila…
Recovering lossless propagation of polaritons with synthesized complex frequency excitation
Fuxin Guan, Xiangdong Guo, Shu Zhang +8
Surface plasmon polaritons and phonon polaritons offer a means of surpassing the diffraction limit of conventional optics and facilitate efficient energy storage, local field enhan…
Synthesized complex-frequency excitation for ultrasensitive molecular sensing
Kebo Zeng, Chenchen Wu, Xiangdong Guo +7
Detecting trace molecules remains a significant challenge. Surface-enhanced infrared absorption (SEIRA) based on plasmonic nanostructures, particularly graphene, has emerged as a p…
Electron-infrared phonon coupling in ABC trilayer graphene
Xiaozhou Zan, Xiangdong Guo, Aolin Deng +18
Stacking order plays a crucial role in determining the crystal symmetry and has significant impacts on electronic, optical, magnetic, and topological properties. Electron-phonon co…
Approaching the Purcell factor limit with whispering-gallery hyperbolic phonon polaritons in hBN nanotubes
Xiangdong Guo, Ning Li, Xiaoxia Yang +9
Enhanced light-matter interaction at the nanoscale is pivotal in the foundation of nonlinear optics, quantum optics, and nanophotonics, which are essential for a vast range of appl…
Four-dimensional Vibrational Spectroscopy for Nanoscale Mapping of Phonon Dispersion in BN Nanotubes
Ruishi Qi, Ning Li, Jinlong Du +8
Direct measurement of local phonon dispersion in individual nanostructures can greatly advance our understanding of their electrical, thermal, and mechanical properties. However, s…
Plasmonic-based gas sensing with graphene nanoribbons
Kaveh Khaliji, Sudipta Romen Biswas, Hai Hu +5
The main challenge to exploiting plasmons for gas vibrational mode sensing is the extremely weak infrared absorption of gas species. In this work, we explore the possibility of tra…
Towards optimal single-photon sources from polarized microcavities
Hui Wang, Yu-Ming He, Tung Hsun Chung +21
An optimal single-photon source should deterministically deliver one and only one photon at a time, with no trade-off between the source's efficiency and the photon indistinguishab…
On-demand semiconductor source of entangled photons which simultaneously has high fidelity, efficiency, and indistinguishability
Hui Wang, Hai Hu, T. -H. Chung +14
An outstanding goal in quantum optics and scalable photonic quantum technology is to develop a source that each time emits one and only one entangled photon pair with simultaneousl…
Far-field nanoscale infrared spectroscopy of vibrational fingerprints of molecules with graphene plasmons
Hai Hu, Xiaoxia Yang, Feng Zhai +5
Infrared spectroscopy, especially for molecular vibrations in the fingerprint region between 600 and 1500 cm-1, is a powerful characterization method for bulk materials. However, m…
Ultralong Lifetime Plasmons on Picosecond Time Scale Enabled by Hybrid Plasmon-Phonon Polaritons
Xiaoxia Yang, Feng Zhai, Hai Hu +4
Graphene plasmonics is of great interest for compact optical devices working in broad frequency domains with ultrahigh speed and very low energy consumption. However, graphene plas…