Axially excited, tightly interlaced, chiral sculptured thin films for polarization-universal bandgaps

Lakhtakia, Akhlesh

doi:10.1016/j.ijleo.2006.07.013

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…The history of CSTFs began 65 years ago with the fabrication of fluorite CSTF by Young and Kowal in 1959 [42,43], though research on these materials was dormant until revival in 1995 [36,44]. A new type of structurally chiral material was proposed about 15 years ago [45] and first fabricated using physical vapor deposition [36] in 2022. Called a tightly interlaced matched ambidextrous bilayer (TIMAB), this material differs from CSTFs, CSLCs, and CLCs in one attribute: structural handedness.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic surface waves guided by the interface of a metal and a tightly interlaced matched ambidextrous bilayer

De Simone,

Chiadini,

Fiumara

et al. 2024

J. Opt.

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The existence and characteristics of electromagnetic surface waves (ESWs) whose propagation is guided by the planar interface of metal and a tightly interlaced matched ambidextrous bilayer (TIMAB) are theoretically investigated, a TIMAB being a periodic unidirectionally nonhomogeneous material whose unit cell consists of one period each of two structurally chiral materials that are identical except in structural handedness. Thus, the structural handedness flips in the center of the unit cell. A canonical boundary-value problem was formulated and a dispersion equation was solved, the ESWs being classified as surface-plasmon-polariton (SPP) waves. Flipping the structural handedness once in the unit cell can greatly enhance the number of possible SPP waves, one or more of which may be superluminal.

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Section: Introductionmentioning

confidence: 99%

Electromagnetic surface waves guided by the interface of a metal and a tightly interlaced matched ambidextrous bilayer

De Simone,

Chiadini,

Fiumara

et al. 2024

J. Opt.

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“…The first type is called a TIGHTLY INTERLACED MATCHED AMBIDEXTROUS BILAYER (TIMAB), whose unit cell comprises one structural period each of two otherwise identical chiral STFs but of opposite structural handedness. 4 The second type is called an EQUICHIRAL SCULPTURED THIN FILM (ECSTF), whose unit cell comprises four CTFs that are identical and have the same thickness, except that the substrate had been quickly rotated by 90 • about a central normal axis between the depositions of any two consecutive CTFs. 5…”

Section: Introductionmentioning

confidence: 99%

Architecting the columnar morphology of sculptured thin films for polarization-universal bandgaps

Fiallo

Horn²,

Lakhtakia³

2023

International Workshop on Thin Films for Electronics, Electro-Optics, Energy and Sensors 2022

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Columnar thin films are assemblies of parallel straight columns of nanoscale cross-sectional dimensions grown by physical vapor deposition on appropriate substrates. Sculptured thin films are similar, but the columnar shape is architected for specific objectives. Polarization-universal bandgaps with maximum transmittance under 20% were realized as sculptured thin films of two different types: (i) tightly interlaced matched ambidextrous bilayers (TIMABs) to modify the circular Bragg phenomenon and (ii) equichiral sculptured thin films (ECSTFs) that display the Bragg phenomenon. The serial bideposition technique was employed for architecting the columns. Samples characterized optically as well as with scanning electron microscopy.

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Electromagnetic response of multiple conducting cylinders coated with chiral material

Ahmed

Manan

Naqvi

2016

Optik

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Axially excited, tightly interlaced, chiral sculptured thin films for polarization-universal bandgaps

Cited by 6 publications

References 9 publications

Electromagnetic surface waves guided by the interface of a metal and a tightly interlaced matched ambidextrous bilayer

Electromagnetic surface waves guided by the interface of a metal and a tightly interlaced matched ambidextrous bilayer

Architecting the columnar morphology of sculptured thin films for polarization-universal bandgaps

Electromagnetic response of multiple conducting cylinders coated with chiral material

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