4 papers
Z_2 Photonic topological insulators in the visible wavelength range for robust nanoscale photonics
Wenjing Liu, Minsoo Hwang, Zhurun Ji +3
Topological photonics provides an ideal platform for demonstrating novel band topology concepts, which are also promising for robust waveguiding, communication and computation appl…
Circular photogalvanic effect in 2D van der Waals heterostructure
Abdullah Rasmita, Chongyun Jiang, Hui Ma +3
Utilizing spin or valley degree of freedom is one of the promising approaches to realize more energy-efficient information processing. In the 2D transition metal dichalcogenide, th…
Observation and active control of a collective polariton mode and polaritonic band gap in few-layer WS2 strongly coupled with plasmonic lattices
Wenjing Liu, Yuhui Wang, Biyuan Zheng +7
Two-dimensional semiconductors host excitons with very large oscillator strengths and binding energies due to significantly reduced carrier screening. Two-dimensional semiconductor…
Spatially dispersive circular photogalvanic effect in a Weyl semimetal
Zhurun Ji, Gerui Liu, Zachariah Addison +8
Weyl semimetals are gapless topological states of matter with broken inversion and/or time reversal symmetry, which can support unconventional responses to externally applied elect…