An intermediate-coupling variational method is presented to investigate the surface electron states in wurtzite AxB1-xN (A, B=Al, Ga and In) ternary mixed crystals (TMCs). Corresponding effective Hamiltonian are derived by considerin
The fiber laser based on an oscillating-amplifying integrated structure has the potential to benefit from the advantages of a fiber laser oscillator and amplifier with the characteristics of strong anti-back-reflected light ability and high efficiency. He
A real-time monitoring system is set up based on a computer, dynamic interferometer, beam expanding system, and a beam reflecting system. The stability and repeatability of the monitoring system is verified. A workpiece and a glass monitoring plate are pl