Precision and informational limits in inelastic optical spectroscopy

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Title: Precision and informational limits in inelastic optical spectroscopy
Authors: Torok, P
Foreman, MR
Item Type: Journal Article
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.
Issue Date: 16-Apr-2019
Date of Acceptance: 2-Apr-2019
URI: http://hdl.handle.net/10044/1/71504
DOI: https://doi.org/10.1038/s41598-019-42619-7
ISSN: 2045-2322
Publisher: Nature Research
Start Page: 1
End Page: 16
Journal / Book Title: Scientific Reports
Volume: 9
Copyright Statement: © Te Author(s) 2019. 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. Te 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/.
Sponsor/Funder: Royal Society
The Royal Society
Funder's Grant Number: University Research Fellowship
UF150335
Keywords: Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
BRILLOUIN
PERFORMANCE
SCATTERING
physics.ins-det
physics.ins-det
physics.optics
Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
BRILLOUIN
PERFORMANCE
SCATTERING
Publication Status: Published
Article Number: ARTN 6140
Online Publication Date: 2019-04-16
Appears in Collections:Physics
Photonics
Faculty of Natural Sciences



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