Voltage-tunable pass band in cylindrical multilayered structure containing PMMA and 0.67PMN–0.33PT single crystal as a defect layer
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- 作者：Ritesh Kumar Chourasia ; Surendra Prasad ; Vivek Singh
- 关键词：Cylindrical multilayered structures ; Defect mode ; Voltage ; tunable pass band ; 0.67PMN–0.33PT single crystal
- 刊名：Optical and Quantum Electronics
- 出版年：2016
- 出版时间：December 2016
- 年：2016
- 卷：48
- 期：12
- 全文大小：656 KB
- 刊物主题：Optics, Optoelectronics, Plasmonics and Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
- 出版者：Springer US
- ISSN：1572-817X
- 卷排序：48
文摘
In present paper, an inline optical demultiplexer through cylindrical multilayered structure having a cavity of Poly-methyl methacrylate surrounded with single crystal 0.67PMN–0.33PT is presented. The required transmission of the proposed structure is obtained by transfer matrix method using cylindrical coordinate system. It is observed that the multilayer cylindrical structure is able to provide the photonic band gap, where groups of wavelengths are stopped from propagation through the waveguide. The insertion of cavity in considered structure also provides a pass band in the photonic band gap region. The 0.67PMN–0.33PT crystal in the present structure is used to control the thickness of cavity by applying an external DC voltage. Hence, the obtained shift of pass band is approximately 6 nm/V in the proposed structure.