4.6 Article

Fabrication of mesoscale polymeric templates for three-dimensional disordered photonic materials

期刊

OPTICS EXPRESS
卷 21, 期 1, 页码 1057-1065

出版社

OPTICAL SOC AMER
DOI: 10.1364/OE.21.001057

关键词

-

类别

资金

  1. Sciex Swiss Research Fellowship [10.030]
  2. Swiss National Science Foundation [132736, 128729]
  3. Adolphe Merkle Foundation

向作者/读者索取更多资源

We report on the mesoscale fabrication and characterization of polymeric templates for isotropic photonic materials derived from hyper-uniform point patterns using direct laser writing in a polymer photoresist. We study experimentally the microscopic structure by electron microscopy and small angle light scattering. Reducing the refractive index mismatch by liquid infiltration we find good agreement between the scattering data and numerical calculations in the single scattering limit. Our work thus demonstrates the feasibility of fabricating such random designer materials on technologically relevant length scales. (c) 2013 Optical Society of America

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

News Item Optics

The show must go on

Frank Scheffold, Luis S. Froufe-Perez

Summary: Researchers have discovered an effect in random media where the directional memory of incoming light persists even after the incident radiation is no longer present.

NATURE PHOTONICS (2022)

Article Optics

Transport properties of optically thin solid dielectrics from frequency correlations of randomly scattered light

Geoffroy J. Aubry, Nathan Fuchs, Sergey Skipetrov, Frank Scheffold

Summary: Frequency-dependent intensity correlation function measurements can be used to determine the optical turbidity of solid disordered dielectrics. We demonstrate how to apply this measurement method through a speckle frequency correlation experiment, and provide a practical example.

OPTICS LETTERS (2022)

Article Polymer Science

Microrheological Approach for Probing the Entanglement Properties of Polyelectrolyte Solutions

Atsushi Matsumoto, Chi Zhang, Frank Scheffold, Amy Q. Shen

Summary: The entanglement dynamics and viscoelasticity of polyelectrolyte solutions were studied, showing discrepancies between experimental measurements and Dobrynin's model predictions, indicating the influence of electrostatic interactions on the viscoelastic properties of polyelectrolyte solutions.

ACS MACRO LETTERS (2022)

Correction Optics

Transport properties of optically thin solid dielectrics from frequency correlations of randomly scattered light (vol 47, 1439, 2022)

Geoffroy J. Aubry, Nathan Fuchs, Sergey Skipetrov, Frank Scheffold

Summary: This publisher's note provides a correction to Opt. Lett. 47, 1439 (2022).

OPTICS LETTERS (2022)

Article Chemistry, Physical

Reactive Sintering of Dysprosium-Iron Garnet via a Perovskite-Hematite Solid State Reaction and Physical Properties of the Material

Magdalena Stan, Radoslaw Lach, Pawel A. Krawczyk, Wojciech Salamon, Jakub Haberko, Jacek Niziol, Anita Trenczek-Zajac, Lukasz Gondek, Blazej Kowalski, Antoni Zywczak

Summary: In this paper, a successful synthesis method for Dy3Fe5O12 (DyIG) was reported, and the magnetic and optical properties of the material were characterized. The results show that the samples have similar magnetic temperature and activation energy values to bulk DyIG obtained using other methods.

MATERIALS (2022)

Article Chemistry, Physical

Macroporous Silica Foams Fabricated via Soft Colloid Templating

Maxime J. Bergman, Clara Garcia-Astrain, Nathan Fuchs, Kalpana Manne, Pavel Yazhgur, Luis S. Froufe-Perez, Luis M. Liz-Marzan, Frank Scheffold

Summary: Macroporous materials with controlled pore sizes are of high interest due to their low weight and unique properties. This study reports the use of flexible microgel colloids decorated with silica nanoparticles as templates for macroporous foams, resulting in lightweight pure silica structures with well-defined cellular or network topology.

SMALL METHODS (2022)

Article Optics

Echo speckle imaging of dynamic processes in soft materials

Shu Zhang, Jorn Peuser, Chi Zhang, Frederic Cardinaux, Pavel Zakharov, Sergey E. Skipetrov, Roberto Cerbino, Frank Scheffold

Summary: We propose a laser-speckle imaging technique called Echo speckle imaging (ESI) that can quantify the local dynamics in biological tissue and soft materials. With a noise level around or below 10% of the measured signal, the spatial resolution is not affected. This is achieved through unconventional speckle beam illumination, creating changing and statistically independent illumination conditions, significantly improving measurement accuracy. Control experiments on dynamically homogeneous and heterogeneous soft materials and tissue phantoms demonstrate the effectiveness of the method.

OPTICS EXPRESS (2022)

Article Materials Science, Multidisciplinary

Fabrication of Hyperuniform Dielectric Networks via Heat-Induced Shrinkage Reveals a Bandgap at Telecom Wavelengths

Stefan Aeby, Geoffroy J. Aubry, Luis S. Froufe-Perez, Frank Scheffold

Summary: Recent studies have reported the existence of photonic bandgaps (PBGs) in disordered hyperuniform network structures with high enough refractive index contrast. However, the current experimental methods are unable to achieve the smallest central gap wavelength close to the near-infrared light spectrum. In this study, the authors demonstrate a heat-treatment induced shrinkage of the network's polymer template obtained by direct laser writing (DLW), allowing for smaller feature sizes and a pronounced gap near telecom wavelengths.

ADVANCED OPTICAL MATERIALS (2022)

Article Nanoscience & Nanotechnology

Inkjet Printing of Structurally Colored Self-Assembled Colloidal Aggregates

Pavel Yazhgur, Nicolas Muller, Frank Scheffold

Summary: This article demonstrates the use of photonic ball dispersions as inkjet printing inks, increasing color purity and suppressing multiple scattering.

ACS PHOTONICS (2022)

Editorial Material Chemistry, Physical

Metasurfaces provide the extra bling

Frank Scheffold

Summary: Structuring surfaces coated with nanoparticles in the subwavelength range provides nearly full control over the optical appearance of an object.

NATURE MATERIALS (2022)

Article Physics, Multidisciplinary

Transport through Amorphous Photonic Materials with Localization and Bandgap Regimes

Frank Scheffold, Jakub Haberko, Sofia Magkiriadou, Luis S. Froufe-Perez

Summary: This study proposes a framework for describing light transmission through three-dimensional amorphous dielectric materials that exhibit both localization and a photonic bandgap. By considering the density of states of photons and coherent reflection, the authors are able to quantitatively describe light transmission in different transport regimes. Numerical simulations support their theoretical approach.

PHYSICAL REVIEW LETTERS (2022)

Article Chemistry, Multidisciplinary

Probing Temperature Responsivity of Microgels and Its Interplay with a Solid Surface by Super-Resolution Microscopy and Numerical Simulations

Xhorxhina Shaulli, Rodrigo Rivas-Barbosa, Maxime J. Bergman, Chi Zhang, Nicoletta Gnan, Frank Scheffold, Emanuela Zaccarelli

Summary: Super-resolution microscopy is used to investigate the internal structure of microgels and their response to temperature changes. The study combines direct stochastic optical reconstruction microscopy and molecular dynamics simulations to analyze the behavior of microgels on hydrophilic and hydrophobic surfaces. The results provide important insights for using this technique in studying more complex systems.

ACS NANO (2023)

Article Chemistry, Physical

Optical tweezer platform for the characterization of pH-triggered colloidal transformations in the oleic acid/water system

Marco Manca, Chi Zhang, Frank Scheffold, Stefan Salentinig

Summary: This study demonstrates the analysis of pH-driven structural transformations using a comprehensive approach, revealing the transitions of oleic acid particles from multilamellar structures to nanostructured emulsions and eventually oil droplets. The changes in pH also affect the interfacial tension and induce self-propelled motion of the particles.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Multidisciplinary Sciences

Three-dimensional printing of photonic colloidal glasses into objects with isotropic structural color

Ahmet F. Demiroers, Erik Poloni, Maddalena Chiesa, Fabio L. Bargardi, Marco R. Binelli, Wilhelm Woigk, Lucas D. C. de Castro, Nicole Kleger, Fergal B. Coulter, Alba Sicher, Henning Galinski, Frank Scheffold, Andre R. Studart

Summary: In this study, a 3D printing platform for the assembly of colloidal particles of silica and carbon with programmable structural color is proposed. The printing parameters and ink composition are optimized to achieve objects with tunable structural color. Multimaterial printing is used to create complex-shaped objects with multiple structural colors, offering a new approach for mimicking structural color in natural systems.

NATURE COMMUNICATIONS (2022)

Article Physics, Multidisciplinary

Scattering phase delay and momentum transfer of light in disordered media

Pavel Yazhgur, Geoffroy J. Aubry, Luis S. Froufe-Perez, Frank Scheffold

Summary: This study accurately introduces collective scattering and defines the effective medium in single scattering from heterogeneous dielectrics with a substantial refractive index contrast, starting from fundamental principles. The research results are important for the rational design of optical materials.

PHYSICAL REVIEW RESEARCH (2022)

暂无数据