Nano-achiral complex composites for extreme polarization optics.

Autor: Lu J; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA.; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA.; Center for Complex Particle Systems (COMPASS), University of Michigan, Ann Arbor, MI, USA., Wu W; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA.; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA.; Center for Complex Particle Systems (COMPASS), University of Michigan, Ann Arbor, MI, USA., Colombari FM; Brazilian Biorenewables National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, Brazil., Jawaid A; Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA.; UES, Inc., Dayton, OH, USA., Seymour B; ARCTOS Technology Solutions, Beavercreek, OH, USA., Whisnant K; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA.; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA.; Center for Complex Particle Systems (COMPASS), University of Michigan, Ann Arbor, MI, USA., Zhong X; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA.; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA., Choi W; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA.; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA., Chalmpes N; Department of Materials Science and Engineering, Cornell University, Ithaca, NY, USA., Lahann J; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA.; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA.; Center for Complex Particle Systems (COMPASS), University of Michigan, Ann Arbor, MI, USA., Vaia RA; Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA. richard.vaia@us.af.mil., de Moura AF; Department of Chemistry, Federal University of São Carlos, São Carlos, Brazil. moura@ufscar.br., Nepal D; Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Dayton, OH, USA. dhriti.nepal.1@afrl.af.mil., Kotov NA; Department of Chemical Engineering, University of Michigan, Ann Arbor, MI, USA. kotov@umich.edu.; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA. kotov@umich.edu.; Center for Complex Particle Systems (COMPASS), University of Michigan, Ann Arbor, MI, USA. kotov@umich.edu.; Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI, USA. kotov@umich.edu.
Jazyk: angličtina
Zdroj: Nature [Nature] 2024 Jun; Vol. 630 (8018), pp. 860-865. Date of Electronic Publication: 2024 May 29.
DOI: 10.1038/s41586-024-07455-4
Abstrakt: Composites from 2D nanomaterials show uniquely high electrical, thermal and mechanical properties 1,2 . Pairing their robustness with polarization rotation is needed for hyperspectral optics in extreme conditions 3,4 . However, the rigid nanoplatelets have randomized achiral shapes, which scramble the circular polarization of photons with comparable wavelengths. Here we show that multilayer nanocomposites from 2D nanomaterials with complex textured surfaces strongly and controllably rotate light polarization, despite being nano-achiral and partially disordered. The intense circular dichroism (CD) in nanocomposite films originates from the diagonal patterns of wrinkles, grooves or ridges, leading to an angular offset between axes of linear birefringence (LB) and linear dichroism (LD). Stratification of the layer-by-layer (LBL) assembled nanocomposites affords precise engineering of the polarization-active materials from imprecise nanoplatelets with an optical asymmetry g-factor of 1.0, exceeding those of typical nanomaterials by about 500 times. High thermal resilience of the composite optics enables operating temperature as high as 250 °C and imaging of hot emitters in the near-infrared (NIR) part of the spectrum. Combining LBL engineered nanocomposites with achiral dyes results in anisotropic factors for circularly polarized emission approaching the theoretical limit. The generality of the observed phenomena is demonstrated by nanocomposite polarizers from molybdenum sulfide (MoS 2 ), MXene and graphene oxide (GO) and by two manufacturing methods. A large family of LBL optical nanocomponents can be computationally designed and additively engineered for ruggedized optics.
(© 2024. The Author(s), under exclusive licence to Springer Nature Limited.)
Databáze: MEDLINE
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