Abstract
Due to the advantages of THz wave in nondestructive examination (NDE) of materials, terahertz time-domain spectrometer (THz-TDS) has become a mature device for THz detection. Thus, improving signal-to-noise ratio (SNR) and reliability of THz-TDS are considered as the vital work. In this paper, photoconductive antenna (PCA) and electro-optic sampling (EOS) were used to measure the intensity of THz wave. Under the same laser conditions, the residual pump laser and probe laser polarization in THz-TDS were studied for influence on the SNR of THz wave. The experimental results demonstrated the significance of the existing THz-TDS. In THz band, the refractive index of GaSe nanofilm varied from 3.3 to 4.1 with the frequency range from 0.3 THz to 0.6 THz.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.