Publications (11)
Photoacoustic Identification of Laser-induced Microbubbles as Light Scattering Centers for Optical Limiting in Liquid Suspension of Graphene Nanosheets
Qiuhui Zhang, Yi Qiu, Feng Lin +8
Liquid suspensions of carbon nanotubes, graphene and transition metal dichalcogenides have exhibited excellent performance in optical limiting. However, the underlying mechanism ha…
Optimal dimensions of cone and pyramid moth-eye structures for windows
Chaoran Tu, Jonathan Hu, Curtis R. Menyuk +4
We computationally investigate the transmission efficiency through moth-eye nanostructures that are fabricated on windows in the wavelength range from 0.4 to 2 $…
Two-Stage Gauss--Seidel Preconditioners and Smoothers for Krylov Solvers on a GPU cluster
Luc Berger-Vergiat, Brian Kelley, Sivasankaran Rajamanickam +5
Gauss-Seidel (GS) relaxation is often employed as a preconditioner for a Krylov solver or as a smoother for Algebraic Multigrid (AMG). However, the requisite sparse triangular solv…
Accurate and Efficient Modeling of the Transverse Mode Instability in High Energy Laser Amplifiers
Curtis R. Menyuk, Joshua T. Young, Jonathan Hu +3
We study the transverse mode instability (TMI) in the limit where a single higher-order mode (HOM) is present. We demonstrate that when the beat length between the fundamental mode…
Marangoni Convection-Driven Laser Fountains and Waves on Free Surfaces of Liquids
Feng Lin, Aamir Nasir Quraishy, Tian Tong +18
It is well accepted that an outward Marangoni convection from a low surface tension region will make the surface depressed. Here, we report that this established perception is only…
A Diamagnetic, Light-Driven Tesla Engine Based on a Mechanically Displaced, Magnetically Levitated Graphene Disk
Tian Tong, Feng Lin, Wei Zhang +11
Ferromagnetic materials are widely used in Tesla thermomagnetic engines, whereas diamagnetic counterparts have remained unexplored. Here, we demonstrate the first diamagnetic Tesla…