Format

Send to

Choose Destination
Opt Express. 2010 Jul 19;18(15):15338-48. doi: 10.1364/OE.18.015338.

Gouy shift correction for highly accurate refractive index retrieval in time-domain terahertz spectroscopy.

Author information

1
Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague 8, Czech Republic. kuzelp@fzu.cz

Abstract

Terahertz spectroscopic measurements are usually performed in focused beam geometry while the standard routine for the retrieval of the sample refractive index assumes plane-wave approximation. In this paper we propose a model for the transmission function which accounts for spatially limited Gaussian terahertz beams. We demonstrate experimentally its validity and applicability for an accurate extraction of the refractive index from experimental data.

PMID:
20720911
DOI:
10.1364/OE.18.015338

Supplemental Content

Full text links

Icon for Optical Society of America
Loading ...
Support Center