THz time-domain spectroscopy of cesium iodide

F. Gao; R. Mendis

doi:10.1117/12.757958

4 January 2008 THz time-domain spectroscopy of cesium iodide

F. Gao, R. Mendis

Proceedings Volume 6840, Terahertz Photonics; 68401H (2008) https://doi.org/10.1117/12.757958
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

The optical properties of Cesium Iodide (CsI) in the frequency range from 0.1 to 2.0 THz were studied by employing THz time-domain spectroscopy. The CsI samples were synthesized using CsI powder that was pressed into 2 mm thick pellets. The obtained time-domain data were transformed into the frequency domain using Fourier Transforms, and then analyzing the respective phase and amplitude spectra, the refractive index (RI) and the absorption constant of CsI were deduced. The RI of CsI is seen to increase from 2.55 to 3.15 as the frequency increases from 0.15 to 1.4 THz. For frequencies above 1.4 THz, the data was unusable due to the increased absorption. The empirical Sellmeier equation was used to fit the frequency-dependent RI and to determine the absorption wavelength λ₁.

Citation Download Citation

F. Gao and R. Mendis "THz time-domain spectroscopy of cesium iodide", Proc. SPIE 6840, Terahertz Photonics, 68401H (4 January 2008); https://doi.org/10.1117/12.757958

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