Absolute absorption intensities of liquids: towards the determination and use of secondary infrared absorption intensity standards; absorption intensities of liquid benzene

John E. Bertie; C. Dale Keefe; R. Norman Jones

doi:10.1117/12.56478

1 March 1992 Absolute absorption intensities of liquids: towards the determination and use of secondary infrared absorption intensity standards; absorption intensities of liquid benzene

John E. Bertie, C. Dale Keefe, R. Norman Jones

Author Affiliations +

Proceedings Volume 1575, 8th Intl Conf on Fourier Transform Spectroscopy; (1992) https://doi.org/10.1117/12.56478
Event: Eighth International Conference on Fourier Transform Spectroscopy, 1991, Lubeck-Travemunde, Germany

Abstract

In this paper we examine the accuracy of different algorithms for the FFT-based Hilbert transform, compared with the much slower Kramers-Kronig transform. For the transform from imaginary to real refractive indices, the Kramers-Kronig transform gives deviations from the correct n((nu) ) spectra of 0.05%, while some existing algorithms for the Hilbert transform give up to 4% deviation over a wide wavenumber range. The BZ algorithm for the Hilbert transform is presented which gives n((nu) ) accurate to 0.05% deviation, the same as the Kramers-Kronig transform. The BZ algorithm for the transform from real to imaginary refractive index gives k((nu) ) accurate to 0.2% of the largest k((nu) ) value in the spectrum.

Citation Download Citation

John E. Bertie, C. Dale Keefe, and R. Norman Jones "Absolute absorption intensities of liquids: towards the determination and use of secondary infrared absorption intensity standards; absorption intensities of liquid benzene", Proc. SPIE 1575, 8th Intl Conf on Fourier Transform Spectroscopy, (1 March 1992); https://doi.org/10.1117/12.56478

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