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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 9 — Oct. 2, 2013

Evanescent wave assisted nanomaterial coating

Samir K. Mondal, Sudipta Sarkar Pal, Dharmadas Kumbhakar, Umesh Tiwari, and Randhir Bhatnagar  »View Author Affiliations


Applied Optics, Vol. 52, Issue 22, pp. 5455-5459 (2013)
http://dx.doi.org/10.1364/AO.52.005455


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Abstract

In this work we present a novel nanomaterial coating technique using evanescent wave (EW). The gradient force in the EW is used as an optical tweezer for tweezing and self-assembling nanoparticles on the source of EW. As a proof of the concept, we have used a laser coupled etched multimode optical fiber, which generates EW for the EW assisted coating. The section-wise etched multimode optical fiber is horizontally and superficially dipped into a silver/gold nanoparticles solution while the laser is switched on. The fiber is left until the solution recedes due to evaporation leaving the fiber in air. The coating time usually takes 40–50 min at room temperature. The scanning electron microscope image shows uniform and thin coating of self-assembled nanoparticles due to EW around the etched section. A coating thickness <200nm is achieved. The technique could be useful for making surface-plasmon-resonance-based optical fiber probes and other plasmonic circuits.

© 2013 Optical Society of America

OCIS Codes
(260.6970) Physical optics : Total internal reflection
(310.1860) Thin films : Deposition and fabrication
(220.4241) Optical design and fabrication : Nanostructure fabrication
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: May 28, 2013
Revised Manuscript: June 27, 2013
Manuscript Accepted: July 5, 2013
Published: July 25, 2013

Virtual Issues
Vol. 8, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Samir K. Mondal, Sudipta Sarkar Pal, Dharmadas Kumbhakar, Umesh Tiwari, and Randhir Bhatnagar, "Evanescent wave assisted nanomaterial coating," Appl. Opt. 52, 5455-5459 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-22-5455


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