1 October 2007 Proposal to obtain a hollow laser beam from a hollow cone-shaped resonator
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Optical Engineering, 46(10), 108001 (2007). doi:10.1117/1.2790912
Abstract
A CO2 laser with a hollow cone-shaped resonator (HCR) for producing a hollow laser beam (HLB) is proposed. The HCR consists of a totally reflective mirror and a partially reflective mirror at the two ends of a hollow cone-shaped discharge tube. In a longitudinal section of the HCR along its axis of symmetry it can be regarded as a folded cavity. Employing an standard optical system, the HLBs can be focused to meet the requirements of various applications. Analysis shows that not only can an HLB be obtained, but also the radius of the dark region of the focused HLB is easy to adjust. The hollow cone-shaped CO2 laser may be used as a new type of optical tweezers.
Jinglun Liu, Yude Li, Mei Chen, Junping Guo, Feng Zhao, "Proposal to obtain a hollow laser beam from a hollow cone-shaped resonator," Optical Engineering 46(10), 108001 (1 October 2007). http://dx.doi.org/10.1117/1.2790912
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KEYWORDS
Gas lasers

Mirrors

Resonators

Carbon monoxide

Decision support systems

Optical tweezers

Reflectors

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