Holographic photopolymer linear variable filter with enhanced blue reflection

Tania Moein, Dengxin Ji, Xie Zeng, Ke Liu, Qiaoqiang Gan, Alexander N. Cartwright

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A single beam one-step holographic interferometry method was developed to fabricate porous polymer structures with controllable pore size and location to produce compact graded photonic bandgap structures for linear variable optical filters. This technology is based on holographic polymer dispersed liquid crystal materials. By introducing a forced internal reflection, the optical reflection throughout the visible spectral region, from blue to red, is high and uniform. In addition, the control of the bandwidth of the reflection resonance, related to the light intensity and spatial porosity distributions, was investigated to optimize the optical performance. The development of portable and inexpensive personal health-care and environmental multispectral sensing/imaging devices will be possible using these filters. © 2014 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)3081-3087
Number of pages7
JournalACS Applied Materials and Interfaces
Volume6
Issue number5
DOIs
StatePublished - Mar 12 2014
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)

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