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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 9 — Aug. 28, 2012

Tunable protein harmonic diffractive micro-optical elements

Yun-Lu Sun, Dong-Xu Liu, Wen-Fei Dong, Qi-Dai Chen, and Hong-Bo Sun  »View Author Affiliations

Optics Letters, Vol. 37, Issue 14, pp. 2973-2975 (2012)

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Herein, tunable protein harmonic diffractive microlenses (PHDMs) have been constructed by femtosecond laser direct writing from bovine serum albumin. With excellent three-dimensional topography, PHDMs show distinct harmonic diffractive features, such as similarly good imaging performance with smaller thickness than refractive lenses and well controlled minus chromatic dispersion compared with simple diffractive lenses (5% focal length shift against 21% of the protein Fresnel zone plate with the same radius under light with wavelength 450–659 nm). Owing to the nature of protein molecules as “building blocks,” the focal length of the PHDM can be facilely tuned within seconds by changing the pH value (focal length tunability of up to 20%).

© 2012 Optical Society of America

OCIS Codes
(000.1430) General : Biology and medicine
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(160.1435) Materials : Biomaterials

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: April 2, 2012
Revised Manuscript: May 20, 2012
Manuscript Accepted: May 21, 2012
Published: July 13, 2012

Virtual Issues
Vol. 7, Iss. 9 Virtual Journal for Biomedical Optics

Yun-Lu Sun, Dong-Xu Liu, Wen-Fei Dong, Qi-Dai Chen, and Hong-Bo Sun, "Tunable protein harmonic diffractive micro-optical elements," Opt. Lett. 37, 2973-2975 (2012)

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