Comparison and development of absorption peak determination algorithms for wavelength standards

Changjiang Zhu; Leonard M. Hanssen

doi:10.1117/12.403571

11 October 2000 Comparison and development of absorption peak determination algorithms for wavelength standards

Changjiang Zhu, Leonard M. Hanssen

Proceedings Volume 4103, Optical Diagnostic Methods for Inorganic Materials II; (2000) https://doi.org/10.1117/12.403571
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

Several peak determination algorithms are described and compared using the spectra of a NIST wavelenght/wavenumber standard reference material (SRM). These methods are the (1) centroid (or center of gravity) (with fraction value 0.5), (2) extrapolated centroid, (3) extrapolated bisecting, (4) polynomial curve fit, and (5) absolute maximum (minimum) methods. Comparisons are made of the peak wavelength value accuracy and reproducibility, versatility and other aspects of the peak determination methods. Optimization studies of the centroid, extrapolated centroid, and extrapolated bisecting peak determination methods, used for several NIST SRM's, have found that the peak value accuracy and precision can be improved by careful selection of peak fraction, spectral data density and polynomials fitting order (for extrapolated algorithms).

Citation Download Citation

Changjiang Zhu and Leonard M. Hanssen "Comparison and development of absorption peak determination algorithms for wavelength standards", Proc. SPIE 4103, Optical Diagnostic Methods for Inorganic Materials II, (11 October 2000); https://doi.org/10.1117/12.403571

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