Design And Research Of Hartmann Beam Expander With High Power And Wide Aperture

To design and research of Hartmann beam expander with wide aperture according to the theory of the third-order aberration ,based on the software of optical design—ZEMAX.by the way of designing a specific example of the new type expander:The wavelength ofentrance ray is 0.6328μm,the ratio of amplify is 45,the dispersing angle is 2mard,the caliberis 200mm,the raltive caliber is 0.5.In the example,we take a surface of extended asphere into the object design of systerm,in the example,we can rectify the aberration of systerm better,the quality of the image can be improved compare to the surface is sphere,It can satisfy the technology target mostly,It also can overcome the difficulty of ensuring the image quality of off-axis of the systerm.The article can be divided for five parts.The first one,to summarize the aim and content of the article; The second one,the theory of aberration and evaluation of image quality of optical systerm,It also the base; The third one,to illustrate the type and character of beam expander,to explain the computation of aberration and the theory of design of the new type beam expander; The fourth one,to introduce the theory and procedures of the optical software; The fifth one,through the specific esample to design and anylysis the new beam expander,and to evaluate the image quality.