Artículos de revistas
Birefringence measurement in the terahertz range based on double Fourier analysis
Fecha
2014-02Registro en:
Sanjuan, Federico Ezequiel; Bockelt, Alexander; Vidal, Borja; Birefringence measurement in the terahertz range based on double Fourier analysis; Optical Society Of America; Optics Letters; 39; 4; 2-2014; 809-8012
0146-9592
1539-4794
Autor
Sanjuan, Federico Ezequiel
Bockelt, Alexander
Vidal, Borja
Resumen
A method for obtaining the average refractive indexes of a birefringent material in the terahertz region in a single measurement with a standard terahertz time-domain spectrometer is presented. The method is based on processing the frequency-domain interference between terahertz pulses and echoes through the Fourier transform of the terahertz spectrum. The technique also allows the determination of the optical axis orientation of the material by making two measurements with different angles of the sample optical axis.