papers
Publications (3)
physics.optics2022
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…
physics.optics2022
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…
physics.optics2016
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…