Photonics Research, Volume. 8, Issue 6, 1002(2020)
Terahertz wave modulation properties of thermally processed BST/PZT ferroelectric photonic crystals
Fig. 1. AFM images of four samples annealed at: (a) 620°C, (b) 650°C, (c) 680°C, and (d) 700°C. The scan areas are
Fig. 2. (a) Time domain transmission spectrum of air; samples with 0 mW and 400 mW optical pump. (b) Power dependence of the refractive index variations of BST/PZT photonic crystals at 0.5 THz annealed at different temperatures. (c) UV-Vis absorption spectra of substrate (Si), substrate with electrode, BST, PZT monolayer, and BST/PZT photonic crystals annealed at different temperatures.
Fig. 3. Frequency dependence of the (a) real part and (b) imaginary part of dielectric permittivity of four samples annealed at different temperatures with 0 mW (spheres) and 400 mW optical pump power (stars). The data points are experimental values, and the solid lines are the fits by Eq. (
Fig. 4. Schematic diagrams of multi-field modulation processes of 680°C annealed sample: (a) pumped by static 532 nm optical field with dynamic electric field bias and (c) transmission modulation; (b) pumped by dynamic 532 nm optical field with static electric field bias and (d) transmission modulation;
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Ying Zeng, Weijun Wang, Furi Ling, Jianquan Yao. Terahertz wave modulation properties of thermally processed BST/PZT ferroelectric photonic crystals[J]. Photonics Research, 2020, 8(6): 1002
Category: Optical and Photonic Materials
Received: Sep. 25, 2019
Accepted: Apr. 8, 2020
Published Online: Jun. 1, 2020
The Author Email: Furi Ling (lingfuri@163.com)