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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editor: Gregory W. Faris
  • Vol. 2, Iss. 6 — Jun. 13, 2007

Imprinted diffractive optics for terahertz radiation

E. D. Walsby, J. Alton, C. Worrall, H. E. Beere, D. A. Ritchie, and D. R.S. Cumming  »View Author Affiliations

Optics Letters, Vol. 32, Issue 9, pp. 1141-1143 (2007)

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Terahertz diffractive optic elements have been fabricated in polypropylene by imprinting with a silicon master. A silicon master is created with eight phase levels for high diffraction efficiency and etched using inductively coupled plasma reactive ion etching. This technique enables the rapid replication of complex optical structures in a high transmission material. Excellent replication of multilevel high efficiency Fresnel lenses is shown. The resulting lenses were tested with a 2 THz quantum cascade laser. The signal strength at the focus was 70 times the base signal strength.

© 2007 Optical Society of America

OCIS Codes
(050.1380) Diffraction and gratings : Binary optics
(050.1970) Diffraction and gratings : Diffractive optics
(110.5220) Imaging systems : Photolithography
(220.3630) Optical design and fabrication : Lenses

ToC Category:
Optical Design and Fabrication

Original Manuscript: December 19, 2006
Revised Manuscript: January 29, 2007
Manuscript Accepted: January 31, 2007
Published: April 3, 2007

Virtual Issues
Vol. 2, Iss. 6 Virtual Journal for Biomedical Optics

E. D. Walsby, J. Alton, C. Worrall, H. E. Beere, D. A. Ritchie, and D. R. S. Cumming, "Imprinted diffractive optics for terahertz radiation," Opt. Lett. 32, 1141-1143 (2007)

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