Tunable resonance-domain diffraction gratings based on electrostrictive polymers

Ramon Axelrod*, Yosi Shacham-Diamand, Michael A. Golub

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Critical combination of high diffraction efficiency and large diffraction angles can be delivered by resonance-domain diffractive optics with high aspect ratio and wavelength-scale grating periods. To advance from static to electrically tunable resonance-domain diffraction grating, we resorted to its replication onto 2-5 μm thick P(VDF-TrFE-CFE) electrostrictive ter-polymer membranes. Electromechanical and optical computer simulations provided higher than 90% diffraction efficiency, a large continuous deflection range exceeding 20°, and capabilities for adiabatic spatial modulation of the grating period and slant. A prototype of the tunable resonance-domain diffraction grating was fabricated in a soft-stamp thermal nanoimprinting process, characterized, optically tested, and provided experimental feasibility proof for the tunable sub-micron-period gratings on electrostrictive polymers.

Original languageEnglish
Pages (from-to)1817-1825
Number of pages9
JournalApplied Optics
Volume56
Issue number7
DOIs
StatePublished - 1 Mar 2017

Funding

FundersFunder number
Israel Science Foundation1542/11

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