1 August 2007 Generation of hollow conic beams using a metal axicon mirror
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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)
S. R. Mishra, S. K. Tiwari, S. P. Ram, 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 . Submission:
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