Bijendra Singh, V. V. Subramaniam, S. R. Daultabad, and Ashim Chakraborty
We report for the first time the performance of axicon based conical resonators (ABCRs) in a copper vapor laser, with novel results. The unstable conical resonator comprising of conical mirror (reflecting axicon) with axicon angle ~pi/18, cone angle ~160 degrees , and a convex mirror of 60 cm radius ... [Rev. Sci. Instrum. 81, 073110 (2010)] published Tue Jul 27, 2010.
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