Title :
Focused beam effect on measuring precise optical parameters of liquid water with terahertz time domain spectroscopy
Author :
Choi, Dahye ; Son, Heyjin ; Park, Hyeong Ryeol ; Park, Gun-Sik
Author_Institution :
Dept. of Phys. & Astron., Seoul Nat. Univ., Seoul, South Korea
Abstract :
We study the refractive index and the absorption coefficient of liquid water with collimated beam and focused beam. Optical parameters with focused beam are inaccurate explained by the Gouy shift. This inaccuracy is theoretically calculated and will be compared with the experimental results with THz-TDS.
Keywords :
optical collimators; optical focusing; refractive index; terahertz spectroscopy; water; Gouy shift; absorption coefficient; collimated beam; focused beam effect; liquid water; precise optical parameters; refractive index; terahertz time domain spectroscopy; Adaptive optics; Laser beams; Measurement by laser beam; Optical pulses; Optical reflection; Optical variables control; Refractive index;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105011
