Generation of hollow conic beams using a metal axicon mirror

S. R. Mishra; S. K. Tiwari; S. P. Ram; S. C. Mehendale

doi:10.1117/1.2771155

1 August 2007 Generation of hollow conic beams using a metal axicon mirror

S. R. Mishra, S. K. Tiwari, S. P. Ram, S. C. Mehendale

Author Affiliations +

Optical Engineering, Vol. 46, Issue 8, 084002 (August 2007). https://doi.org/10.1117/1.2771155

Abstract

We propose and demonstrate generation of hollow conic beams using a new element-a metal axicon mirror. A good-quality hollow conic beam was generated from a Gaussian laser beam with high conversion efficiency. We also show that by focusing the hollow conic beam with suitable lenses, it is possible to obtain a weakly converging hollow beam for which the diameter remains between 1 and 3 mm over a propagation distance of about 10 cm, which should be of interest for atom-guiding applications. In the focal region, a nearly nondiffracting central spot of size ≈13 μm (FWHM) was observed for a propagation distance of ≈8 mm.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

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S. R. Mishra, S. K. Tiwari, S. P. Ram, and S. C. Mehendale "Generation of hollow conic beams using a metal axicon mirror," Optical Engineering 46(8), 084002 (1 August 2007). https://doi.org/10.1117/1.2771155

Published: 1 August 2007

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