Related Experiment Video
Updated: Jul 8, 2026

09:32
Stable DNA Motifs, 1D and 2D Nanostructures Constructed from Small Circular DNA Molecules
Published on: April 12, 2019
Polyadic Cantor superlattices with variable lacunarity
Optics Letters
|February 1, 1997
Summary
This study analyzes wave reflection and transmission in fractal superlattices, introducing lacunarity as a key factor. Novel computational methods efficiently model these complex structures for the first time.
Area of Science:
- Condensed matter physics
- Materials science
- Wave phenomena
Background:
- Fractal superlattices exhibit unique wave interaction properties.
- Understanding these properties is crucial for advanced material design.
- Previous studies have not fully explored the impact of structural disorder.
Purpose of the Study:
- To formulate and analytically solve the reflection and transmission properties of polyadic fractal superlattices.
- To characterize these properties concerning stage of growth, fractal dimension, and lacunarity.
- To introduce and investigate the effect of lacunarity on wave interactions with fractal structures.
Main Methods:
- Analytical formulation and solution of wave propagation.
- Characterization using parameters like stage of growth, fractal dimension, and lacunarity.
- Development of a novel doubly recursive computational technique.
Main Results:
- Reflection and transmission coefficients were derived for fractal superlattices.
- The study presents twist plots summarizing reflection data.
- The impact of lacunarity on wave interactions was quantified for the first time.
Conclusions:
- Lacunarity significantly influences wave reflection and transmission in fractal superlattices.
- The developed computational technique efficiently models complex Cantor superlattices.
- This research provides a new framework for understanding wave phenomena in disordered fractal materials.
Related Concept Videos
Lattice Centering and Coordination Number
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
Types of Unit Cells
Imagine taking a large number of identical...
Bewley Lattice Diagram
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
Quadric Surfaces
Quadric surfaces are three-dimensional surfaces characterized by second-degree equations in the variables x, y, and z. These surfaces are smooth and continuous, and specific combinations of squared and linear terms define their shapes. The main types of quadric surfaces include ellipsoids, cones, paraboloids, and hyperboloids. Each type exhibits distinct geometric features depending on how the variables are arranged and related within the equation.Ellipsoids are closed surfaces formed when all...
Castigliano's Theorem
Castigliano's theorem analyzes displacements and rotations in elastic structures. It relates the derivative of elastic strain energy to the applied forces or moments, allowing for the calculation of deformations. The theorem states that the partial derivative of the total strain energy of a system with respect to a specific load results in the displacement at the point where the load is applied. This principle applies to both forces and moments.
Metallic Solids
Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
Trends in Lattice Energy: Ion Size and Charge
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:

