Shakespeare and Non-Fiction

Scheil, Katherine West

doi:10.4324/9781315778341-17

Cited by 1 publication

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“…The simultaneously solidifying phases generally organize into simple motifs consisting of alternating layers (lamellar morphology) or fibrous structures (rod morphology) ( Figure 4B); however, complex structures, such as spiral or broken lamellar, globular, elongated rods, or even structures with similarities to split-ring-resonators, are also possible ( Figure 4C). [14,17,[87][88][89][90] Another important parameter is the rate of solidification, defined as the velocity of the solidification front, v. Depending on the solidification [84] Copyright 2016, American Chemical Society. [14,17,[87][88][89][90] Another important parameter is the rate of solidification, defined as the velocity of the solidification front, v. Depending on the solidification [84] Copyright 2016, American Chemical Society.…”

Section: Directionally Solidified Eutectics As Advanced Optical Matermentioning

confidence: 99%

“…[14] The microstructure of a eutectic material is dependent on factors including composition, atomic or ionic diffusivity, interfacial energies, thermal conductivity, and latent heat of fusion of the individual components. [14,17,[87][88][89][90] Another important parameter is the rate of solidification, defined as the velocity of the solidification front, v. Depending on the solidification Reproduced with permission. [84] Copyright 2016, American Chemical Society.…”

Section: Directionally Solidified Eutectics As Advanced Optical Matermentioning

confidence: 99%

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Template‐Directed Solidification of Eutectic Optical Materials

Kulkarni

Kohanek

Tyler

et al. 2018

Advanced Optical Materials

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polarizers, some waveguides, and many lasers. [1][2][3] Materials with powerful optical functionalities, including negative-index of refraction and optical chirality, can be realized by appropriate placement of materials with suitable properties in 2D or 3D space. [4][5][6] Light in the visible spectrum can be manipulated, although the tolerance for defects is exceedingly low at visible frequencies, and the number of materials with the appropriate properties is limited. [7,8] Most photonic crystals are fabricated by high-resolution top-down 2D patterning methods such as electron-beam lithography, interference lithography, and focused ion beam milling. [9] However, it is challenging to fabricate large-area bulk materials with these techniques, especially with intricate internal structures. [8] Additionally, many materials with promising optical properties are not compatible with these top-down patterning methods. [4,10] As work on colloidal crystals has shown, controlled self-assembly is an effective route to organizing materials into 3D architectures, which interact strongly with light. [9][10][11][12][13] Colloidal self-assembly, however, only offers a limited set of symmetries (generally those of close packed arrangements), and a spherical basis. [12] For many applications, considerably more complex structures are of interest. Particularly promising approaches for forming materials with complex internal microstructures include eutectic solidification and block copolymer self-assembly, [14][15][16][17] and materials with interesting optical properties have been reported using both approaches. These methods are advantageous due to the wide range of microstructures they form. Here, we focus on the structures formed by eutectic solidification since materials with a broader range of optical properties are available compared to that provided by block copolymers, and because the characteristic lengths of structures accessible through eutectic solidification better match the wavelengths of visible and IR light. Further, forming materials with sufficiently large characteristic dimensions for interaction with visible light by block copolymer assembly is synthetically challenging as it requires high molecular weight polymers. [18] Similarly, self-assembly of other building blocks, e.g., nanoparticles, [19,20] molecules, [21,22] and DNA, [23,24] tend to produce structures with characteristic dimensions too small to provide strong light-matter interactions (via diffractive phenomena), [2,3,25] and are thus not the emphasis of this review.Mesostructured materials can exhibit enhanced light-matter interactions, which can become particularly strong when the characteristic dimensions of the structure are similar to or smaller than the wavelength of light. For controlling visible to near-infrared wavelengths, the small characteristic dimensions of the required structures usually demand fabrication by sophisticated lithographic techniques. However, these fabrication methods are restricted to producing 2D and a limited range of 3D...

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