Abstract
The transmittance properties of one-dimensional periodic photonic structures composed of four distinct dielectric materials are analyzed using the transfer matrix method. The refractive index dispersion of each material is modeled by the three-term Sellmeier equation. A tunable and enhanced photonic band structure is demonstrated, with flexibility achieved by adjusting the optical thicknesses of the constituent layers and varying the arrangement of unit cells within the structure. These systems show strong potential for use in band-stop and band-pass optical filters, suitable for integration into multifunctional photonic circuits operating across targeted frequency ranges.
| Original language | English |
|---|---|
| Article number | 131036 |
| Number of pages | 7 |
| Journal | Physics Letters A |
| Volume | 563 |
| Early online date | 2 Oct 2025 |
| DOIs | |
| Publication status | E-pub ahead of print - 2 Oct 2025 |
Keywords
- one-dimensional photonic crystals
- transfer matrix method
- optical bandgaps
- material dispersion