论文信息 - Calibration free terahertz imaging based on 2D electro-optic sampling technique

Calibration free terahertz imaging based on 2D electro-optic sampling technique

A two-dimensional electro-optic sampling technique with polarity modulation for THz imaging is proposed and demonstrated. The polarity modulation greatly improves the signal linearity to the THz field. Combining this technique with software lock-in detection, it is found that the modulation efficiency is also improved compared to conventional optical chopping.

[1] M Usami,et al. Development of a THz spectroscopic imaging system. , 2002, Physics in medicine and biology.

[2] X. Xu,et al. Improvement of terahertz imaging with a dynamic subtraction technique. , 2000, Applied optics.

[3] Xiang Zhang,et al. Two‐dimensional electro‐optic imaging of THz beams , 1996 .

[4] F. G. Sun,et al. Electro-optic sampling near zero optical transmission point , 1999 .

[5] Xicheng Zhang,et al. Polarization modulation in optoelectronic generation and detection of terahertz beams , 1999 .