Terahertz reflection time domain spectroscopy of branched alkanes

Author

Nickel, Daniel ; Mittleman, Daniel M.

Author_Institution

ECE Dept., Rice Univ., Houston, TX, USA

fYear

2011

fDate

2-7 Oct. 2011

Firstpage

1

Lastpage

2

Abstract

The temperature dependent spectroscopic properties of 2-methylpentadecane were measured over several path lengths using terahertz reflection time-domain spectroscopy. The variation of the index of refraction and absorption with temperature was consistent with the behavior of the linear chain n-alkanes in previous studies. However, an increased absorption coefficient was observed indicating a larger induced dipole moment compared to its structural isomers, the higher symmetry n-hexadecane and the highly branched alkane 2,2,4,4,6,8,8-heptamethylnonane.

Keywords

chemical variables measurement; molecular moments; organic compounds; reflectivity; temperature measurement; terahertz spectroscopy; 2-methylpentadecane; absorption coefficient; absorption index variation; branched alkane 2,2,4,4,6,8,8- heptamethylnonane; higher symmetry w-hexadecane; induced molecular dipole moment; refraction index variation; structural isomer; temperature dependent spectroscopic property; terahertz reflection time domain spectroscopy; Absorption; Carbon; Dielectrics; Indexes; Reflection; Spectroscopy; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on

Conference_Location

Houston, TX

ISSN

2162-2027

Print_ISBN

978-1-4577-0510-6

Electronic_ISBN

2162-2027

Type

conf

DOI

10.1109/irmmw-THz.2011.6104916

Filename

6104916