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Simple lens axicon.

Anna Burvall1, Katarzyna Kołacz, Zbigniew Jaroszewicz

  • 1Department of Microelectronics and Information Technology, Royal Institute of Technology, Electrum 229, SE-164 40 Kista, Sweden. at@imit.kth.se

Applied Optics
|September 29, 2004
PubMed
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We developed an inexpensive, easy-to-manufacture lens axicon using only spherical surfaces. This novel design leverages spherical aberration to create a narrow, stable line focus, offering a robust alternative to complex axicon types.

Area of Science:

  • Optics and Photonics
  • Optical Engineering

Background:

  • Traditional axicons (diffractive, refractive, aspheric lens) can be complex and costly to manufacture.
  • There is a need for cost-effective and robust axicon designs suitable for large apertures.

Purpose of the Study:

  • To present the design of a novel cemented doublet-lens axicon.
  • To demonstrate its manufacturing simplicity and cost-effectiveness.
  • To characterize its performance for axicon applications.

Main Methods:

  • Design of a doublet-lens axicon utilizing only spherical surfaces.
  • Leveraging controlled spherical aberration for beam shaping.
  • Numerical and experimental characterization of the lens axicon.

Main Results:

Related Experiment Videos

  • The lens axicon is inexpensive and easy to manufacture, even for large apertures.
  • It exhibits key axicon properties, producing a narrow, extended line focus.
  • The line focus width remains relatively constant along its length.

Conclusions:

  • The proposed lens axicon offers a simple, robust, and cost-effective solution for generating line foci.
  • It provides a viable alternative to more complex diffractive or aspheric axicon designs.
  • The design successfully balances performance with manufacturing ease.