Axial intensity optimization of converged laser beam

Haifeng Wang; Zhongyu Chen; Fuxi Gan

doi:10.1117/12.402773

6 October 2000 Axial intensity optimization of converged laser beam

Haifeng Wang, Zhongyu Chen, Fuxi Gan

Proceedings Volume 4231, Advanced Optical Manufacturing and Testing Technology 2000; (2000) https://doi.org/10.1117/12.402773
Event: International Topical Symposium on Advanced Optical Manufacturing and Testing Technology, 2000, Chengdu, China

Abstract

It is known that for the converged laser beam, the axial intensity distribution corresponds to a Gaussian curve, that is, the intensity on the focal plane is the peak intensity. When it defocuses, the intensity would decrease rapidly. In some cases, optical data storage, for instance, we expect the intensity within a certain distance to be almost equal. In this paper, we propose to use a pure phase superresolution apodizer to optimize the axial intensity distribution of the converged laser beam and at the same time attain superresolution. The intensity point spread function remains almost identical within certain region and the depth of focus is extended.

Citation Download Citation

Haifeng Wang, Zhongyu Chen, and Fuxi Gan "Axial intensity optimization of converged laser beam", Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); https://doi.org/10.1117/12.402773

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