465 citations · 1.6k across the 8 of their papers we have counts for
8 papers
Gate-tunable negative refraction of mid-infrared polaritons
Hai Hu, Na Chen, Hanchao Teng +11
Negative refraction provides an attractive platform to manipulate mid-infrared and terahertz radiation for molecular sensing and thermal radiation applications. However, its implem…
Doping-driven topological polaritons in graphene/α-MoO3 heterostructures
Hai Hu, Na Chen, Hanchao Teng +15
Controlling the charge carrier density provides an efficient way to trigger phase transitions and modulate the optoelectronic properties in natural materials. This approach could b…
THz Near-Field Imaging of Extreme Subwavelength Metal Structures
Xinzhong Chen, Xiao Liu, Xiangdong Guo +15
Modern scattering-type scanning near-field optical microscopy (s-SNOM) has become an indispensable tool in material research. However, as the s-SNOM technique marches into the far-…
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…