Patterned dual-layer achromatic micro-quarter-wave-retarder array for active polarization imaging

Xiaojin Zhao, Xiaofang Pan, Xiaolei Fan, Ping Xu, Amine Bermak, Vladimir G. Chigrinov

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In this paper, we present a liquid-crystal-polymer (LCP)-based dual-layer micro-quarter-wave-retarder (MQWR) array for active polarization image sensors. The proposed MQWRs, for the first time, enable the extraction of the incident light's circularly polarized components in the whole visible regime, which correspond to the fourth parameter of Stokes vector. Compared with the previous implementations, our proposed MQWRs feature high achromaticity, making their applications no longer limited to monochromatic illumination. In addition, the presented thin structure exhibits an overall thickness of 2.43μm, leading to greatly alleviated optical cross-talk between adjacent photo-sensing pixels. Moreover, the reported superior optical performance (e.g. minor transmittance, extinction ratio) validates our optical design and optimization of the proposed MQWRs. Furthermore, the demonstrated simple fabrication recipe offers a cost-effective solution for the monolithic integration between the proposed MQWR array and the commercial solid-state image sensors, which makes the multi-spectral full Stokes polarization imaging system on a single chip feasible.

Original languageEnglish
Pages (from-to)8024-8034
Number of pages11
JournalOptics Express
Volume22
Issue number7
DOIs
Publication statusPublished - 2014
Externally publishedYes

Fingerprint

retarders
sensors
polarization
polarized light
transmittance
extinction
illumination
pixels
liquid crystals
chips
solid state
costs
fabrication
optimization
polymers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Patterned dual-layer achromatic micro-quarter-wave-retarder array for active polarization imaging. / Zhao, Xiaojin; Pan, Xiaofang; Fan, Xiaolei; Xu, Ping; Bermak, Amine; Chigrinov, Vladimir G.

In: Optics Express, Vol. 22, No. 7, 2014, p. 8024-8034.

Research output: Contribution to journalArticle

Zhao, Xiaojin ; Pan, Xiaofang ; Fan, Xiaolei ; Xu, Ping ; Bermak, Amine ; Chigrinov, Vladimir G. / Patterned dual-layer achromatic micro-quarter-wave-retarder array for active polarization imaging. In: Optics Express. 2014 ; Vol. 22, No. 7. pp. 8024-8034.
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