Unambiguous detection and quantification of gas species gained increasing interests in a wide variety of fields such as environmental monitoring,biomedical
The Gouy phase,or phase anomaly,is the phase difference between a diffracted field and a converging spherical wave of the same frequency near focus.Itplays
Most recently,a new class of Dirac-materials called topological insulators (TI) arises as a new kind of saturable absorber (SA).TI also exhibit broadband sa
The microsphere has great potential to improve the resolution of the system,which can be applied in processing of surfaces materials and detec-tion of nano
Tip enhanced Raman spectroscopy (TERS) is a promising chemical and physical information detection method for specimens with nano-scale materials orstructure
Imaging Confocal Raman Micro-spectroscopy technology could be employed to acquire three-dimensional chemical heterogeneity profiles of biomedicalsamples qua
Macroscopic or microscopic structure information of objects is mainly collected by the visible light in our daily life.However,the incident light willbe sca
We present a theoretical study on the slit-slit plasmonic interaction between a pair of asymmetrical metallic nanoslits with an interval wall thickness less