Results 231 to 240 of about 4,263,471 (299)

Characterized Ecoflex Polydimethylsiloxane (PDMS) Hybrids for Advanced Flexible Devices

Advanced Materials Technologies, EarlyView.
Ecoflex–PDMS hybrids are systematically characterized to identify an optimal composition that balances stretchability, optical transparency, and plasma bonding, enabling multifunctional applications in stretchable microfluidics, flexible sensing, and soft robotics.
Xiaoyue Kang, Zhefan Chen, Zhiyang Hong, Wanting Chen, Qingtian Zhang, Amith Mudugamuwa, Tuan‐Khoa Nguyen, Lingxi Ouyang, Nam‐Trung Nguyen, Jun Zhang, Dan Yuan   +10 more
wiley   +1 more source

Refractive Index and Strain Modulation Tailor the Afterglow of Nanocomposite Films. [PDF]

J Phys Chem Lett
Castaing V, Romero M, Drion T, Fernández-Carrión AJ, Lozano G, Míguez H.   +5 more
europepmc   +1 more source

Liquid Crystal Elastomer Actuator Matrix for Large Area Applications

Advanced Materials Technologies, EarlyView.
A scalable approach is used to manufacture a digitally‐controllable, 2D 5 × 5 actuator matrix. The elements of the matrix are produced by direct ink writing of a liquid crystal elastomer ‘artificial muscle’ on large‐area flexible thin‐film heaters. In optimizing the low‐power actuators, multiple heater designs and substrate materials are investigated ...
Giulia Spallanzani, Bart Peeters, Danqing Liu, Peter Zalar, Hylke B. Akkerman, Jeroen A. H. P. Sol   +5 more
wiley   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Biodegradable and Edible Milli‐Fluidic Logic Circuits

Advanced Materials Technologies, EarlyView.
Fully biodegradable and edible fluidic circuits are developed using gelatin‐based valves that operate at low pressure. Logic gates, a one‐bit memory, and a ring oscillator are demonstrated, showing that biodegradable materials can perform computation and control.
Shuhang Zhang, Bokeon Kwak, Özgün Ekrem, Dario Floreano   +3 more
wiley   +1 more source

Liquid Metal Resistive Sensing Architectures for Measuring Diaphragm Strain Responses on Obstructed Surfaces

Advanced Materials Technologies, EarlyView.
A liquid metal‐based strain‐sensing architecture to measure the deformation of a circular diaphragm against obstructed surfaces is formulated using finite element modeling and confocal imaging to establish the mechanical framework and is utilized to control diaphragm‐induced confinement on a bead array, as validated by biomolecular loading level ...
Abdullah‐Bin Siddique, Jui‐Hong Weng, Deng‐Kai Yang, Chia‐Fu Chou, Nathan S. Swami   +4 more
wiley   +1 more source

Cladding mode reorganization in high-refractive-index-coated long-period gratings: effects on the refractive-index sensitivity

Optics Letters, 2005
We theoretically and experimentally investigated the reorganization of cladding modes in high-refractive-index- (HRI-) coated long-period gratings (LPGs), focusing on the influence of refractive-index sensitivity. When azimuthally symmetric nanoscale HRI
Stefania Campopiano, Agostino Iadicicco, Andrea Cusano   +2 more
exaly   +1 more source

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Index of refraction of germanium

Applied Optics, 2020
Measurements of the index of refraction of a sample of high-quality, single-crystal germanium using the minimum deviation refractometry method are presented for temperatures near 22°C and for wavelengths in the range 2 to 14 µm. The standard uncertainty for the measurements ranges from 1.5 × 10 −
John H, Burnett, Eric C, Benck, Simon G, Kaplan, Erik, Stover, Adam, Phenis   +4 more
openaire   +2 more sources

On the Refractive Index of the Retina.

Acta Physiologica Scandinavica, 1947
Summary.1. As a rule the refractive index for dark adapted retinae of cows was 1.358.2. In a material of 321 cases the light adapted retina's index was 1.3610 ± 0.0008.3. The experiments carried out support the supposition expressed by Kühne Aand Ewald that visual purple exudes water when it is bleached.
openaire   +2 more sources

Refractive index of GaN

Physica Status Solidi (a), 1971
The refractive index of GaN and its temperature dependence have been measured using plane-parallel platelets with E ⊥ c. In this direction at 300 K the index is 2.67 at 3.38 eV, 2.33 at 1.0 eV, and has an extrapolated value of 2.29 ± 0.005 at 0 eV. The difference in the refractive indices for E ⊥ c and E ‖ c is 1.5 ± 0.2% at 5000 A. A Debye temperature
openaire   +1 more source