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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 17 — Aug. 16, 2010
  • pp: 17967–17973

Metal microneedle fabrication using twisted light with spin

Takashige Omatsu, Keisuke Chujo, Katsuhiko Miyamoto, Masahito Okida, Kazuki Nakamura, Nobuyuki Aoki, and Ryuji Morita  »View Author Affiliations

Optics Express, Vol. 18, Issue 17, pp. 17967-17973 (2010)

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Microneedle fabrication on a metal surface based on laser ablation using twisted light with spin was demonstrated, for the first time. The resulting needle showed a height of at least 10 μm above the target surface and a tip diameter of less than 0.3 μm. We also demonstrated the fabrication of a two-dimensional 5 × 6 microneedle array. The needles were uniformly well shaped with an average length and tip diameter of about 10 and 0.5 μm, respectively.

© 2010 OSA

OCIS Codes
(140.3300) Lasers and laser optics : Laser beam shaping
(140.3390) Lasers and laser optics : Laser materials processing

ToC Category:
Laser Microfabrication

Original Manuscript: July 12, 2010
Revised Manuscript: August 1, 2010
Manuscript Accepted: August 2, 2010
Published: August 5, 2010

Takashige Omatsu, Keisuke Chujo, Katsuhiko Miyamoto, Masahito Okida, Kazuki Nakamura, Nobuyuki Aoki, and Ryuji Morita, "Metal microneedle fabrication using twisted light with spin," Opt. Express 18, 17967-17973 (2010)

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