Paper-like flexible optically isotropic liquid crystal film for tunable diffractive devices

Ramesh Manda, Jeong Hwan Yoon, Srinivas Pagidi, Surjya Sarathi Bhattacharyya, Dung Thi Thuy Tran, Young Jin Lim, Jae Min Myoung, Seung Hee Lee

Research output: Contribution to journalArticle

Abstract

We have demonstrated a paper-like diffractive film in which nano-structured liquid crystal droplets are embedded in elastomeric monomer incorporated polymer matrix by polymerization induced phase-separation. The film with voltage-tunable phase grating exhibits an optically isotropic phase with high transparency and an effective chromatic diffraction for an incident white light with sub-millisecond switching time. In addition, the proposed diffractive film is exhibiting excellent chemical stability against organic and inorganic solvents. In this paper, the diffraction properties of test films depending on incident polarization direction, wavelength, and spatial dispersion are characterized. Easy processing and optically isotropic nature of the film imparts potential applications to flexible electro-optic devices that can be widely implemented in wearable photonics.

Original languageEnglish
Pages (from-to)34876-34887
Number of pages12
JournalOptics Express
Volume27
Issue number24
DOIs
Publication statusPublished - 2019 Nov 25

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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  • Cite this

    Manda, R., Yoon, J. H., Pagidi, S., Bhattacharyya, S. S., Tran, D. T. T., Lim, Y. J., Myoung, J. M., & Lee, S. H. (2019). Paper-like flexible optically isotropic liquid crystal film for tunable diffractive devices. Optics Express, 27(24), 34876-34887. https://doi.org/10.1364/OE.27.034876