Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/85933
Title: Precision and informational limits in inelastic optical spectroscopy
Authors: Török, Peter
Foreman, Matthew R.
Keywords: Optical Spectroscopy
DRNTU::Science::Physics
Information Theory And Computation
Issue Date: 2019
Source: Török, P., & Foreman, M. R. (2019). Precision and informational limits in inelastic optical spectroscopy. Scientific Reports, 9, 6140-. doi:10.1038/s41598-019-42619-7
Series/Report no.: Scientific Reports
Abstract: Using Fisher information and the Cramér-Rao lower bound, we analyse fundamental precision limits in the determination of spectral parameters in inelastic optical scattering. General analytic formulae are derived which account for the instrument response functions of the dispersive element and relay optics found in practical Raman and Brillouin spectrometers. Limiting cases of dispersion and diffraction limited spectrometers, corresponding to measurement of Lorentzian and Voigt lineshapes respectively, are discussed in detail allowing optimal configurations to be identified. Effects of defocus, spherical aberration, detector pixelation and a finite detector size are also considered.
URI: https://hdl.handle.net/10356/85933
http://hdl.handle.net/10220/48278
DOI: 10.1038/s41598-019-42619-7
Rights: © 2019 The Author(s) (Nature Publishing Group). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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