The goal of this study is to evaluate the compositional and morphological changes of human dentin after Er,Cr∶YSGG laser irradiation by Raman spectroscopy.The dentin surface of human molars were irrad
We present a low-cost measurement approach with two-prism,which can be used for real-time detection and online analysis of liquid refractive-index,based on systematical analysis and experiments of con
Scattering reduction methods is applied to improve the accuracy of spectroscopic measurements but with the price of lowering the signal to noise ratio(SNR).The SNR of three simple experimental scatter
A novel effectively grating coupler was reported in this paper.The design can couple ultraviolet light that the range of wavelength at 300nm from fiber to waveguide efficiently.We use FDTD method to s
The laser cladding layer on the 304 stainless steel surface is modified by a high-frequency microforging process.The microstructure and phase constitution of the laser cladding layer before and after