Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Suppression of spectral interferences due to water-vapor rotational transitions in terahertz time-domain spectroscopy

Not Accessible

Your library or personal account may give you access

Abstract

Absorption lines of atmospheric water vapor are commonly present in terahertz spectra measured in ambient air. These spectral interferences are caused by the rotational transitions of water molecules. In this study, we develop an effective method for suppression of the water-vapor effects by modeling the absorption lines using Lorentzian line shape and spectroscopic parameters extracted from the HITRAN database and then subtracting them iteratively in the frequency domain. The free-space terahertz pulse and the absorbance spectrum of an explosive material are restored successfully in the experimental verification.

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Terahertz time-domain spectroscopy of water vapor

Martin van Exter, Ch. Fattinger, and D. Grischkowsky
Opt. Lett. 14(20) 1128-1130 (1989)

Numerical method based on transfer function for eliminating water vapor noise from terahertz spectra

Y. Huang, P. Sun, Z. Zhang, and C. Jin
Appl. Opt. 56(20) 5698-5704 (2017)

Self-adaptive terahertz spectroscopy from atmospheric vapor based on Hilbert-Huang transform

Huan Liu, Ya-Xian Fan, Lin Li, Hong-Ge Chen, Peng-Fei Wang, and Zhi-Yong Tao
Opt. Express 26(21) 27279-27293 (2018)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (6)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved