研究目的
Analyzing the specific features of the transmission spectrum of a symmetric photonic crystal structure with a high-permittivity interstitial layer and revealing the energy density distribution of the wave field over the structure.
研究成果
The analysis revealed specific features of the transmission spectrum of the symmetric cavity PC structure with a high-permittivity interstitial layer. The transmission can be suppressed almost completely both in the photonic band gap and beyond it. The defect-mode position can be efficiently controlled by an external electric field and temperature, making the structure potentially useful as an efficient filter in a narrow frequency range.
研究不足
The study is limited to one-dimensional photonic crystal structures and does not explore the effects of varying the structure's dimensionality or the use of different materials for the layers.
1：Experimental Design and Method Selection:
The study involves recording transmission spectra of a one-dimensional photonic crystal structure with a high-permittivity interstitial layer. The analysis is performed with and without considering absorption and dispersion in the layers.
2：Sample Selection and Data Sources:
The structure consists of two lateral dielectric mutually inverted PC mirrors and a high-permittivity layer between them. The materials for the layers are chosen based on their permittivity values.
3：List of Experimental Equipment and Materials:
The study uses materials with specific permittivities for the layers in the structure, including SiO2 and ZrO2 for the PC mirrors and SrTiO3 for the cavity layer.
4：Experimental Procedures and Operational Workflow:
The transmission spectra are recorded for different permittivities and thicknesses of the cavity layer. The wave-field distribution over the structure is analyzed for specific frequencies.
5：Data Analysis Methods:
The energy reflectance and transmittance are calculated based on the transfer matrix of the whole structure. The absorption coefficient is determined considering the absorption in the layers.
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