Axicon

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An axicon is a specialized type of lens which has a conical surface. An axicon images a point source into a line along the optic axis, or transforms a collimated laser beam into a ring. It can be used to turn a Gaussian beam into an approximation to a Bessel beam, with greatly reduced diffraction.[1][2]

[edit] References

  1. ^ Kishan Dholakia; David McGloin, and Vene Garcés-Chávez (2002). Optical micromanipulating using a self-reconstructing light beam. Retrieved on 2007-02-06.
  2. ^ V. Garcés-Chávez; D. McGloin, H. Melville, W. Sibbett and K. Dholakia (2002). "Simultaneous micromanipulation in multiple planes using a self-reconstructing light beam". Nature 419. Retrieved on 2007-02-06. 


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