Miniature chiral beamsplitter based on gyroid photonic crystals
Turner MD, Saba M, Zhang Q, Cumming BP, Schröder-Turk G, Gu M (2013)
Publication Type: Journal article
Publication year: 2013
Journal
Book Volume: 7
Pages Range: 801-805
Journal Issue: 10
Abstract
The linearly polarizing beamsplitter is a widely used optical component in photonics. It is typically built from a linearly birefringent crystal such as calcite, which has different critical reflection angles for s- and p-polarized light, leading to the transmission of one linear polarization and angled reflection of the other. However, the analogue for splitting circularly polarized light has yet to be demonstrated due to a lack of natural materials with sufficient circular birefringence. Here, we present a nano-engineered photonic-crystal chiral beamsplitter that fulfils this task. It consists of a prism featuring a nanoscale chiral gyroid network and can separate left- and right-handed circularly polarized light in the wavelength region around 1.615~µm. The structure is fabricated using a galvo-dithered direct laser writing method and could become a useful component for developing integrated photonic circuits that provide a new form of polarization control.
Authors with CRIS profile
Matthias Saba
Lehrstuhl für Theoretische Physik
Gerd Schröder-Turk
Professur für Theoretische Physik
Additional Organisation(s)
Involved external institutions
Australia (AU)How to cite
APA:
Turner, M.D., Saba, M., Zhang, Q., Cumming, B.P., Schröder-Turk, G., & Gu, M. (2013). Miniature chiral beamsplitter based on gyroid photonic crystals. Nature Photonics, 7(10), 801-805. https://dx.doi.org/10.1038/NPHOTON.2013.233
MLA:
Turner, Mark D., et al. "Miniature chiral beamsplitter based on gyroid photonic crystals." Nature Photonics 7.10 (2013): 801-805.
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