Xi'an University of Technology

Chengang Dong

Wei Shi

Cheng Ma

Lei Hou

Yanfeng Li

Jianqiang Gu

Zhaohui Zhai

Lei Yang

Jiaguang Han

Yi Zou

Chunmei Ouyang

Liguo Zhu

Lianghui Du

Disclosed is a transient-state THz spectrometer applied to cells and biological macromolecules, including a femtosecond laser amplifier. A femtosecond laser output by the femtosecond laser amplifier is divided into two beams of pump light and probe light after passing through a beam splitter of which a transmission-reflection ratio is 7:3, the pump light is focused to irradiate a gap between electrodes of a nonlinear photoconductive antenna and emit a terahertz wave after successively passing through a half wave plate, a silver-plated reflector and a first lens, the terahertz wave forms a terahertz wave collineation after successively passing through a second lens, a slab waveguide, a third lens and an ITO film, the terahertz wave collineation and the probe light form a probe light collineation of wavefront tilt which is perpendicularly incident on a ZnTe crystal and detected and recorded by using a CCD camera.

Transient-state THz spectrometer for detecting cells and biological macromolecules

Growing community of inventors

Shanxi, China

Chengang Dong