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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 25 — Dec. 5, 2011
  • pp: 25441–25446

Polarization independent Fabry-Pérot filter based on polymer-stabilized blue phase liquid crystals with fast response time

Yan-Han Chen, Chun-Ta Wang, Chin-Ping Yu, and Tsung-Hsien Lin  »View Author Affiliations

Optics Express, Vol. 19, Issue 25, pp. 25441-25446 (2011)

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This work demonstrates a polarization-independent electrically tunable Fabry-Pérot (FP) filter that is based on polymer-stabilized blue phase liquid crystals (PSBPLCs). An external vertical electric field can be applied to modulate the effective refractive index of the PSBPLCs along the optical axis. Therefore, the wavelength-tuning property of the FP filter is completely independent of the polarization state of the incident light. The change in the birefringence in PSBPLCs is governed by Kerr effect-induced isotropic-to-anisotropic transition, and so the PSBPLCs based FP filter has a short response time. The measured tunability and free spectral range of the FP filter are 0.092 nm/ V and 16nm in the visible region, and 0.12nm/ V and 97nm in the NIR region, respectively, and the response time is in sub-millisecond range. The fast-responding polarization-independent electrically tunable FP filter has substantial potential for practical applications.

© 2011 OSA

OCIS Codes
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Optical Devices

Original Manuscript: September 16, 2011
Revised Manuscript: November 15, 2011
Manuscript Accepted: November 19, 2011
Published: November 29, 2011

Yan-Han Chen, Chun-Ta Wang, Chin-Ping Yu, and Tsung-Hsien Lin, "Polarization independent Fabry-Pérot filter based on polymer-stabilized blue phase liquid crystals with fast response time," Opt. Express 19, 25441-25446 (2011)

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