Abstract-Monte Carlo simulation of near-field terahertz emission from semiconductors

S. C. Corzo-Garcia, A. I. Hernandez-Serrano, E. Castro-Camus, and O. Mitrofanov

Phys. Rev. B 94, 045301 – Published 1 July 2016

https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.045301

We simulated the carrier dynamics in InGaAs after ultrafast photoexcitation. By using a finite-difference time-domain approach we were able to analyze the near terahertz field emission caused by the motion of such carriers. We found that both the current parallel and normal to the interface take a relevant role in the terahertz emission. We also found that the ballistic motion of the carriers after photoexcitation dominates the emission rather than diffusion.

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Abstract-Quality control of leather by terahertz time-domain spectroscopy

Quality control of leather by terahertz time-domain spectroscopy

A. I. Hernandez-Serrano, S. C. Corzo-Garcia, E. Garcia-Sanchez, M. Alfaro, and E. Castro-Camus  »View Author Affiliations

http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-53-33-7872

We use terahertz time-domain spectroscopy, combined with effective-medium theory, to measure the moisture content and thickness of leather simultaneously. These results demonstrate that this method could become a standard quality control test for the industrial tanning process.

© 2014 Optical Society of America