| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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An Approximate Analytical Propagation Formula for Gaussian Beams through a Cat-Eye Optical Lens under Large Incidence Angle Condition |
| ZHAO Yan-Zhong**, SUN Hua-Yan, ZHENG Yong-Hui
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Academy of Equipment Command and Technology, Beijing 101416
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| Cite this article: |
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ZHAO Yan-Zhong, SUN Hua-Yan, ZHENG Yong-Hui 2011 Chin. Phys. Lett. 28 074101 |
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Abstract Based on the generalized diffraction integral formula and the idea that the angle misalignment of the cat-eye optical lens can be transformed into the displacement misalignment, an approximate analytical propagation formula for Gaussian beams through a cat-eye optical lens under large incidence angle condition is derived. Numerical results show that the diffraction effect of the apertures of the cat-eye optical lens becomes stronger along with the increase in incidence angle. The results are also compared with those from using an angular spectrum diffraction integral and experiment to illustrate the applicability and validity of our theoretical formula. It is shown that the approximate extent is good enough for the application of a cat-eye optical lens with a radius of 20 mm and a propagation distance of 100 m, and the approximate extent becomes better along with the increase in the radius of the cat-eye optical lens and the propagation distance.
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| Keywords:
41.85.Ja
42.60.Jf
42.25.Fx
42.79.Ci
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Received: 21 November 2010
Published: 29 June 2011
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| PACS: |
41.85.Ja
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(Particle beam transport)
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42.60.Jf
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(Beam characteristics: profile, intensity, and power; spatial pattern formation)
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42.25.Fx
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(Diffraction and scattering)
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42.79.Ci
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(Filters, zone plates, and polarizers)
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