Research on the Characteristics of Si-Based Reflector under the Action of Strong Laser
Based on the design principle of high reflective (HR) membrane of multilayer medium. The HR membrane appropriate for the chemical oxygen-iodine laser (COIL) with Si/SiO2 as high low refractive index materials, was designed on the silicon substrate, using TFCale3.4 simulation design software. We get the reflectivity of COIL over 99.999% at the output wavelength of 1315nm, above 99.2% at the harmonic of 632.8 nm in theory. The thermal deformation of Si-based reflector under the irradiation of Gaussian beam are calculated, using heat conduction equations and axial thermal deformation formula.
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Y. F. Peng and J. L. Cui, "Research on the Characteristics of Si-Based Reflector under the Action of Strong Laser", Advanced Materials Research, Vols. 287-290, pp. 2230-2233, 2011