Title: Generation of a variable-diameter collimated hollow laser beam using metal axicon mirrors.
Authors: Sanjiv K. Tiwari; Satya R. Mishra; Surjya P. Ram
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.
Subjects: COLLIMATORS; LASER beams; OPTICAL properties of metals; MIRRORS; CONVEX domains; GAUSSIAN beams
Publication: Optical Engineering, 2011, Vol 50, Issue 1, p014001
ISSN: 0091-3286
Publication type: Academic Journal
DOI: 10.1117/1.3530080

Generation of a variable-diameter collimated hollow laser beam using metal axicon mirrors.

Sanjiv K. Tiwari; Satya R. Mishra; Surjya P. Ram