Material parameter extraction for terahertz time-domain spectroscopy using fixed-point iteration

W. Withayachumnankul; B. Ferguson; T. Rainsford; S. P. Mickan; D. Abbott

doi:10.1117/12.612946

7 July 2005 Material parameter extraction for terahertz time-domain spectroscopy using fixed-point iteration

W. Withayachumnankul, B. Ferguson, T. Rainsford, S. P. Mickan, D. Abbott

Proceedings Volume 5840, Photonic Materials, Devices, and Applications; (2005) https://doi.org/10.1117/12.612946
Event: Microtechnologies for the New Millennium 2005, 2005, Sevilla, Spain

Abstract

A simple method to extract the far-infrared dielectric parameters of a homogeneous material from terahertz signals is explored in this paper. Provided with a reference, sample-probing terahertz signal and a known sample thickness, the method can determine the underlying complex refractive index of the sample within a few iterations based on the technique of fixed-point iteration. The iterative process is guaranteed to converge and gives the correct parameters when the material thickness exceeds 200 μm at a frequency of 0.1 THz or 20 μm at a frequency of 1.0 THz.

Citation Download Citation

W. Withayachumnankul, B. Ferguson, T. Rainsford, S. P. Mickan, and D. Abbott "Material parameter extraction for terahertz time-domain spectroscopy using fixed-point iteration", Proc. SPIE 5840, Photonic Materials, Devices, and Applications, (7 July 2005); https://doi.org/10.1117/12.612946

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available