Generation of a Purely Single Transverse Mode Vortex Beam from a He-Ne Laser Cavity with a Spot-Defect Mirror. (29th September 2011)

• Record Type: Journal Article
• Authors: Kano, Ken; Kozawa, Yuichi; Sato, Shunichi
• Other Names: Senthilkumaran Paramasivam Academic Editor.
• Is Part Of: International journal of optics. Volume 2012(2012)
• Publication Date: 2011-09-29
• Subjects: Optics -- Periodicals; Optics; Periodicals; 535
• DOI: 10.1155/2012/359141
• Languages: English
• ISSNs: 1687-9392

Abstract

Abstract : Spot-defect mirrors were fabricated by focusing laser pulses on the surface of conventional dielectric mirrors. These mirrors were used as rear mirrors of a He-Ne laser cavity for generating a vortex beam. The intensity distribution of the beam generated from the cavity with a spot diameter of 50 μ m was in excellent agreement with theory. Comprehensive analysis of the intensity distribution, the beam quality factor, and the interference pattern revealed that the beam obtained was a purely single transverse mode LG01 beam.