An analysis solution of rate equation is derived for vertical cavity surface-emitting lasers.Based on the enhanced spontaneous emission caused by VCSELs and inf
New polymer film materials with good properties are reported.The difference between posivie and negative coronas is also given.The films have good transmittance
The dielectric properties of ceramics with composition of (Sr1-xBix)TiO3+x/2(where x=0.05~0.70 ) were measured at frequency of 1 MHz. The experimental results in
A new polymer composite thin film DMACB/PEK-c is reported. After poling of the film, the refractive indices nt and nn, that is the in-film-plane and the normal-
A twisted fiber optic sensor based on intensity modulation is described.The principle and structure of the sensor and the choice of steel strand modules are int
By stretching the rod waveguide with different velocities in opposite directions,the tapered waveguide can be fabricated.In condition of taking no account of vo