| Original Articles |
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Generation of a Dark Hollow Beam inside a Cavity |
| ZHANG Lei2;LU Xuan-Hui1,2;CHEN Xu-Min2;HE Sai-Ling1 |
| 1Centre for Optical and Electromagnetic Research, State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027
2Optics Institute, Department of Physics, Zhejiang University, Hangzhou 310027 |
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| Cite this article: |
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ZHANG Lei, LU Xuan-Hui, CHEN Xu-Min et al 2004 Chin. Phys. Lett. 21 298-301 |
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Abstract A new method is introduced to generate a hollow beam inside a cavity. Using a matrix eigenvalue method, the laser resonator with optical diffraction elements is theoretically analysed and simulated. The hollow beam can be obtained theoretically by controlling the parameters of the diffraction functions. After designed the diffraction components in the cavity, a hollow beam of good quality is realized experimentally using a YAG solid state laser.
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| Keywords:
41.85.Ew
42.60.By
42.60.Da
42.60.Jf
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Published: 01 February 2004
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| PACS: |
41.85.Ew
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(Particle beam profile, beam intensity)
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42.60.By
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(Design of specific laser systems)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.60.Jf
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(Beam characteristics: profile, intensity, and power; spatial pattern formation)
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