456 citations · 490 across the 10 of their papers we have counts for
10 papers
High-quality hexagonal boron nitride selectively grown on patterned epigraphene by MOVPE
Vishnu Ottapilakkal, Abhishek Juyal, Suresh Sundaram +14
Hexagonal boron nitride encapsulation is the method of choice for protecting graphene from environmental doping and impurity scattering. It was previously demonstrated that metal-o…
Nano selective area growth of GaN by MOVPE on 4H-SiC using epitaxial graphene as a mask: towards integrated III-nitride / graphene / SiC electronics and optoelectronics
Renaud Puybaret, Gilles Patriarche, Matthew B. Jordan +7
We report the growth of high-quality triangular GaN nanomesas, 30-nm thick, on the C-face of 4H-SiC using nano selective area growth (NSAG) with patterned epitaxial graphene grown…
Scalable control of graphene growth on 4H-SiC C-face using decomposing silicon nitride masks
Renaud Puybaret, John Hankinson, James Palmer +5
Patterning of graphene is key for device fabrication. We report a way to increase or reduce the number of layers in epitaxial graphene grown on the C-face (000-1) of silicon carbid…
A quantum-dynamical theory for nonlinear optical interactions in graphene
Zheshen Zhang, Paul L. Voss
We use a quantum-dynamical model to investigate the optical response of graphene under low excitation power. Ultrafast carrier relaxation processes, which play an important role fo…
A 24 km fiber-based discretely signaled continuous variable quantum key distribution system
Quyen Dinh Xuan, Zheshen Zhang, Paul L. Voss
We report a continuous variable key distribution system that achieves a final secure key rate of 3.45 kb/sec over a distance of 24.2 km of optical fiber. The protocol uses discrete…
High-Purity Telecom-Band Entangled Photon-Pairs via Four-Wave Mixing in Dispersion-Shifted Fiber
K. F. Lee, J. Chen, C. Liang +3
We have studied the purity of entangled photon-pairs generated in a dispersion-shifted fiber at various temperatures. Two-photon interference with visibility > 98% is observed at 7…