Electrical terahertz modulator based on photo-excited ferroelectric superlattice.
作者： Jie Ji , Siyan Zhou , Jingcheng Zhang , Furi Ling , Jianquan Yao
DOI: 10.1038/S41598-018-21095-5
关键词: Diode 、 Superlattice 、 Optoelectronics 、 Optical field 、 Ferroelectricity 、 Materials science 、 Modulation 、 Terahertz radiation 、 Electric field 、 Soft modes
摘要: The transmission and dielectric spectra of ferroelectric STO/PT superlattice on Si substrate under simultaneous external optical electric field were investigated compared at room temperature. Results found that when with an field, the realized effective modulation transmission, which displayed a diode property. In addition, comprehensive model combined Debye relaxation Lorentz was used to analyze spectra, variation soft mode put emphasis exploring.
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