78 citations · 168 across the 5 of their papers we have counts for
5 papers
Bandgap closing at the screw dislocations of WS2 spirals
Xin Zhang, Kaige Hu, Yifei Li +6
Van der Waals (vdW) layered transition metal dichalcogenides (TMDCs) materials are emerging as one class of quantum materials holding novel optical and electronic properties. In pa…
Width-dependent Photoluminescence and Anisotropic Raman Spectroscopy from Monolayer MoS Nanoribbons
Guohua Wei, Erik J. Lenferink, David A. Czaplewski +1
Single layers of transition metal dichalcogenides such as MoS are direct bandgap semiconductors with optical and electronic properties distinct from multilayers due to strong v…
Valley Polarization in Size-Tunable Monolayer Semiconductor Quantum Dots
Guohua Wei, David A. Czaplewski, Erik J. Lenferink +3
Three-dimensional confinement allows semiconductor quantum dots (QDs) to exhibit size-tunable electronic and optical properties that enable a wide range of opto-electronic applicat…
Silicon-nitride photonic circuits interfaced with monolayer MoS
Guohua Wei, Teodor K. Stanev, David A. Czaplewski +2
We report on the integration of monolayer molybdenum disulphide with silicon nitride microresonators assembled by visco-elastic layer transfer techniques. Evanescent coupling from…
Coherent optical non-reciprocity in axisymmetric resonators
Erik J. Lenferink, Guohua Wei, Nathaniel P. Stern
We describe an approach to optical non-reciprocity that exploits the local helicity of evanescent electric fields in axisymmetric resonators. By interfacing an optical cavity to he…