中国物理B ›› 1996, Vol. 5 ›› Issue (5): 354-364.doi: 10.1088/1004-423X/5/5/005

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

DESIGN OF DIFFRACTIVE-PHASE AXICON ILLUMINATED BY A GAUSSIAN-PROFILE BEAM

张国庆, 董碧珍, 杨国桢, 顾本源   

  1. Institute of Physics, Academia Sinica, Beijiag 100080, China
  • 收稿日期:1995-06-15 出版日期:1996-05-20 发布日期:1996-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China and supported in part by Grant LWTZ-1298 of the Chinese Academy of Sciences.

DESIGN OF DIFFRACTIVE-PHASE AXICON ILLUMINATED BY A GAUSSIAN-PROFILE BEAM

ZHANG GUO-QING (张国庆), DONG BI-ZHEN (董碧珍), YANG GUO-ZHEN (杨国桢), GU BEN-YUAN (顾本源)   

  1. Institute of Physics, Academia Sinica, Beijiag 100080, China
  • Received:1995-06-15 Online:1996-05-20 Published:1996-05-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China and supported in part by Grant LWTZ-1298 of the Chinese Academy of Sciences.

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摘要： The diffractive-phase axicon can convert the Gaussian-profile beam into axial uniform intensity distribution with long focal depth and high lateral resolution. Two types of phase-retardation functions for the nonuniform-illuminating axicon are derived in terms of the ray tracing and the geometrical law of energy conservation. Based on the general theory of the amplitude-phase retrieval in optical system and the iteration algorithm, the optimization design of the phase distribution of the diffractive-phase axicon can be achieved. The simulation celculations show that the new approach may successfully offer the design of the desired diffractive-phase axicon with long focal depth and high lateral resolution. A comparison of the performances of the holographic axicon with the phase-retardation functions from the geometrical optics prediction and the diffractive-phase axicon designed by the new approach is also presented.

Abstract: The diffractive-phase axicon can convert the Gaussian-profile beam into axial uniform intensity distribution with long focal depth and high lateral resolution. Two types of phase-retardation functions for the nonuniform-illuminating axicon are derived in terms of the ray tracing and the geometrical law of energy conservation. Based on the general theory of the amplitude-phase retrieval in optical system and the iteration algorithm, the optimization design of the phase distribution of the diffractive-phase axicon can be achieved. The simulation celculations show that the new approach may successfully offer the design of the desired diffractive-phase axicon with long focal depth and high lateral resolution. A comparison of the performances of the holographic axicon with the phase-retardation functions from the geometrical optics prediction and the diffractive-phase axicon designed by the new approach is also presented.

中图分类号:  (Lenses, prisms and mirrors)

  • 42.79.Bh
42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation) 42.15.Dp (Wave fronts and ray tracing) 42.15.Eq (Optical system design) 42.40.Eq (Holographic optical elements; holographic gratings)