Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Fundamental Theory on the Zeros Distribution of Multizeros Optical Beam for Longrange Optical Measurement Applications

광학식 장거리 계측을 위한 다중영점 광빔의 영점 배치에 관한 기초 이론

  • Fujimoto, Ikumatsu (Department of Information Physics and Computing, The University of Tokyo) ;
  • Sato, Seichi (Department of Information Physics and Computing, The University of Tokyo) ;
  • Kurihara, Toru (Department of Information Physics and Computing, The University of Tokyo) ;
  • Ando, Sigeru (Department of Information Physics and Computing, The University of Tokyo) ;
  • Kim, Min-Young (School of Electrical Engineering and Computer Science, Kyungpook National University)
  • Published : 2010.03.01
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Abstract

Multizeros(multiple order zeros) optical beams which belong to the Laguerre-Gaussian beams, have rotational phase and conically-shaped amplitude structures around multizeros points in their phase and amplitude profiles, respectively. Especially, they have their own characteristics that the multizero points do not vanish over free-space propagation. Therefore, they are expected to be adequate for the applications of long-range optical measurement by using their multizero points as optical markers for the deformation sensing. In this paper, fundamental properties of multizeros optical beams for long-range optical measurement applications are investigated and clarified. In particular, the mathematical investigations are described on the characteristics of multizeoros optical beams such as (1) separation of a multizero into isolated single order zeros, (2) topological charge of zeros distribution which are induced by superposing them. And also the outline of a fundamental experiment and its result are explained briefly.

Keywords

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