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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 12 — Jun. 15, 2014
  • pp: 3453–3456

Nanoparticle polymer composite volume gratings incorporating chain transfer agents for holography and slow-neutron optics

Ryuta Fujii, Jinxin Guo, Jürgen Klepp, Christian Pruner, Martin Fally, and Yasuo Tomita  »View Author Affiliations


Optics Letters, Vol. 39, Issue 12, pp. 3453-3456 (2014)
http://dx.doi.org/10.1364/OL.39.003453


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Abstract

We demonstrate twofold enhancement of the saturated refractive index modulation (Δnsat) recorded in a photopolymerizable nanoparticle–acrylate polymer composite film by incorporating thiols acting as chain transfer agents. The chain transfer reaction of thiols with (meth)acrylate monomer reduces the polymer crosslinking density and facilitates the mutual diffusion of nanoparticles and monomer during holographic exposure. These modifications provide increased density modulations of nanoparticles and the formed polymer, resulting in the enhancement of Δnsat as high as 1.6×102 at a wavelength of 532 nm. The incorporation of thiols also leads to shrinkage suppression and to improvement of the grating’s spatial frequency response. Such simultaneous improvement is very useful for holographic applications in light and neutron optics.

© 2014 Optical Society of America

OCIS Codes
(090.7330) Holography : Volume gratings
(160.5470) Materials : Polymers
(160.4236) Materials : Nanomaterials

ToC Category:
Materials

History
Original Manuscript: March 7, 2014
Revised Manuscript: April 28, 2014
Manuscript Accepted: May 2, 2014
Published: June 5, 2014

Citation
Ryuta Fujii, Jinxin Guo, Jürgen Klepp, Christian Pruner, Martin Fally, and Yasuo Tomita, "Nanoparticle polymer composite volume gratings incorporating chain transfer agents for holography and slow-neutron optics," Opt. Lett. 39, 3453-3456 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-12-3453

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