太赫兹时域光谱系统检测MCT陶瓷太赫兹性能

Terahertz time-domain spectroscopy for MCT ceramics

摘要:

通过固相反应法制备MgTiO3-CaTiO3陶瓷，采用太赫兹时域光谱系统测试该陶瓷样品的时域光谱，经过计算得到0.2 THz~2.5 THz频率范围内陶瓷的电容率和吸收系数；介质陶瓷的电容率随烧结温度升高先增大后减小，烧结条件为1 260 ℃×3 h的陶瓷性能最佳，在1 THz处电容率为18.68，吸收系数为8.52 cm-1，可望应用于太赫兹整机设备中的材料与元器件。

Abstract:

Ceramics of MgTiO3-CaTiO3 are prepared via solid-state reaction route. Terahertz time-domain spectroscopy is adopted to obtain permittivity and absorption coefficient of the samples. It is found that the best properties for the ceramics sintered at 1 260 ℃ for 3 h are displayed with permittivity of 18.68 and absorption coefficient of 8.52 cm-1 at 1 THz. This kind of ceramics may be suitable for application of Terahertz devices.