1 January 2011 Generation of a variable-diameter collimated hollow laser beam using metal axicon mirrors
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Abstract
We demonstrate the generation of a collimated hollow beam of variable diameter using a pair of convex and concave metal axicon mirrors. Using these homemade inexpensive convex and concave metal axicon mirrors of equal cone angle, we have generated a good quality hollow beam with high conversion efficiency (∼76%) from a Gaussian input beam. The focusing of the generated collimated hollow beam has been compared with that of a diverging hollow beam.
© (2011) Society of Photo-Optical Instrumentation Engineers (SPIE)
Sanjiv Tiwari, Satya R. Mishra, Suriya P. Ram, "Generation of a variable-diameter collimated hollow laser beam using metal axicon mirrors," Optical Engineering 50(1), 014001 (1 January 2011). https://doi.org/10.1117/1.3530080 . Submission:
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