76 citations · 79 across the 7 of their papers we have counts for
7 papers
Plasmonic Double-hole Bull's Eye Nano-antenna for Far-field Polarization Control
Abbas Ghaffari, Somayeh Kashani, Jiazhen Li +3
Plasmonic polarization conversion offers significant advantages over conventional methods, including a smaller device footprint and easier integration into photonic circuits. In th…
Plasmonic interferometer for nanoscale refractometry
Abbas Ghaffari, Robert Riehn
We numerically study a double-slit interferometer that detects the modification of local phase and amplitude signal due to a refractive index contrast in a nanoplasmonic sensor aft…
Particle Size Effects in Flow-Stabilized Solids
Scott Lindauer, Carlos P. Ortiz, Robert Riehn +1
Flow-stabilized solids are a class of fragile matter that forms when a dense suspension of colloids accumulates against a semi-permeable barrier, for flow rates above a critical va…
Nonaffine deformation under compression and decompression of a flow-stabilized solid
Carlos P. Ortiz, Robert Riehn, Karen E. Daniels
Understanding the particle-scale transition from elastic deformation to plastic flow is central to making predictions about the bulk material properties and response of disordered…
Nonlinear Elasticity of Flow-Stabilized Solids
Carlos P. Ortiz, Karen E. Daniels, Robert Riehn
Thermal fluctuations, geometric exclusion, and external driving all govern the mechanical response of dense particulate suspensions. Here, we measure the stress-strain response of…
Flow-Driven Formation of Solid-like Microsphere Heaps
Carlos P. Ortiz, Robert Riehn, Karen E. Daniels
We observe the formation of heaps of repulsive microspheres, created by flowing a colloidal microsphere suspension towards a flat-topped ridge placed within a quasi two-dimensional…