Nonlinear frequency conversion is one of the most fundamental processes in nonlinear optics.It has a wide range of applications in our daily lives,including novel light sources,sensing,and information processing.It is...Nonlinear frequency conversion is one of the most fundamental processes in nonlinear optics.It has a wide range of applications in our daily lives,including novel light sources,sensing,and information processing.It is usually assumed that nonlinear frequency conversion requires large crystals that gradually accumulate a strong effect.However,the large size of nonlinear crystals is not compatible with the miniaturisation of modern photonic and optoelectronic systems.Therefore,shrinking the nonlinear structures down to the nanoscale,while keeping favourable conversion efficiencies,is of great importance for future photonics applications.In the last decade,researchers have studied the strategies for enhancing the nonlinear efficiencies at the nanoscale,e.g.by employing different nonlinear materials,resonant couplings and hybridization techniques.In this paper,we provide a compact review of the nanomaterials-based efforts,ranging from metal to dielectric and semiconductor nanostructures,including their relevant nanofabrication techniques.展开更多
The response of cells during spreading and motility is dictated by several multi-physics events,which are triggered by extracellular cues and occur at different time-scales.For this sake,it is not completely appropria...The response of cells during spreading and motility is dictated by several multi-physics events,which are triggered by extracellular cues and occur at different time-scales.For this sake,it is not completely appropriate to provide a cell with classical notions of the mechanics of materials,as for“rheology”or“mechanical response”.Rather,a cell is an alive system with constituents that show a reproducible response,as for the contractility for single stress fibers or for the mechanical response of a biopolymer actin network,but that reorganize in response to external cues in a non-exactly-predictable and reproducible way.Aware of such complexity,in this note we aim at formulating a multi-physics framework for modeling cells spreading and motility,accounting for the relocation of proteins on advecting lipid membranes.展开更多
文摘Nonlinear frequency conversion is one of the most fundamental processes in nonlinear optics.It has a wide range of applications in our daily lives,including novel light sources,sensing,and information processing.It is usually assumed that nonlinear frequency conversion requires large crystals that gradually accumulate a strong effect.However,the large size of nonlinear crystals is not compatible with the miniaturisation of modern photonic and optoelectronic systems.Therefore,shrinking the nonlinear structures down to the nanoscale,while keeping favourable conversion efficiencies,is of great importance for future photonics applications.In the last decade,researchers have studied the strategies for enhancing the nonlinear efficiencies at the nanoscale,e.g.by employing different nonlinear materials,resonant couplings and hybridization techniques.In this paper,we provide a compact review of the nanomaterials-based efforts,ranging from metal to dielectric and semiconductor nanostructures,including their relevant nanofabrication techniques.
文摘The response of cells during spreading and motility is dictated by several multi-physics events,which are triggered by extracellular cues and occur at different time-scales.For this sake,it is not completely appropriate to provide a cell with classical notions of the mechanics of materials,as for“rheology”or“mechanical response”.Rather,a cell is an alive system with constituents that show a reproducible response,as for the contractility for single stress fibers or for the mechanical response of a biopolymer actin network,but that reorganize in response to external cues in a non-exactly-predictable and reproducible way.Aware of such complexity,in this note we aim at formulating a multi-physics framework for modeling cells spreading and motility,accounting for the relocation of proteins on advecting lipid membranes.
