【摘要】 从THz波增益、吸收系数、折射率几方面,讨论了THz电磁波参量振荡器辐射THz波受温度的影响,从而得到THz波增益随温度的升高而降低主要原因,是由于LiNbO3晶体中A1对称光学软模的拉曼活性降低所导致,这为今后太赫兹(THz)波参量振荡器的优化设计提供了参考价值。更多还原

【Abstract】 The temperature influence of THz wave radiated by THz electromagnetic wave parametric oscillator is discussed according to the terahertz wave gain,absorption coefficient,refractive index.The conclusion which the THz wave gain reduce with the rise of temperature is made.This is largely due to A1 symmeric optical soft mode Raman activity reduced in LiNbO3 crystals,which provides valuable reference for the THz wave parametric oscillator optimization design.更多还原