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Generalized Optical Design of the Double-Row Circular Multi-Pass Cell

A new design of circular multi-pass cells (CMPC) with two rows of reflection spots on mirrors is presented. The effective optical path length (OPL) of this novel CMPC is double that of traditional CMPC with the same diameter and interval of spots. This OPL can be readily adjusted to have regular int...

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Detalles Bibliográficos
Autores principales: Yang, Zheng, Guo, Yin, Ming, Xianshun, Sun, Liqun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6111760/
https://www.ncbi.nlm.nih.gov/pubmed/30111713
http://dx.doi.org/10.3390/s18082680
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author Yang, Zheng
Guo, Yin
Ming, Xianshun
Sun, Liqun
author_facet Yang, Zheng
Guo, Yin
Ming, Xianshun
Sun, Liqun
author_sort Yang, Zheng
collection PubMed
description A new design of circular multi-pass cells (CMPC) with two rows of reflection spots on mirrors is presented. The effective optical path length (OPL) of this novel CMPC is double that of traditional CMPC with the same diameter and interval of spots. This OPL can be readily adjusted to have regular intervals by rough rotation adjustment. We achieved a spatial separation of pre- and post-transfer optical systems that was adequately large even in the cases with a large number of passes. Analytical chief ray tracing analysis and a generalized method for parameter determination for designing the cell are presented in detail. The stable condition of the double-row CMPC (DR-CMPC) is also derived by the ABCD matrix method. Designs with maximum effective OPL of 74.72 m, 48.67 m and 24.57 m are demonstrated and verified by ray tracing simulations within a 25 cm diameter DR-CMPC. An adjustment of the regular intervals to 1 m can be achieved in both designs. The overall astigmatism of the design with an effective OPL of 74.72 m is only 9.30 × 10(−6) mm, which is four orders of magnitude smaller than that of the traditional CMPC with similar geometric parameters.
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spelling pubmed-61117602018-08-30 Generalized Optical Design of the Double-Row Circular Multi-Pass Cell Yang, Zheng Guo, Yin Ming, Xianshun Sun, Liqun Sensors (Basel) Article A new design of circular multi-pass cells (CMPC) with two rows of reflection spots on mirrors is presented. The effective optical path length (OPL) of this novel CMPC is double that of traditional CMPC with the same diameter and interval of spots. This OPL can be readily adjusted to have regular intervals by rough rotation adjustment. We achieved a spatial separation of pre- and post-transfer optical systems that was adequately large even in the cases with a large number of passes. Analytical chief ray tracing analysis and a generalized method for parameter determination for designing the cell are presented in detail. The stable condition of the double-row CMPC (DR-CMPC) is also derived by the ABCD matrix method. Designs with maximum effective OPL of 74.72 m, 48.67 m and 24.57 m are demonstrated and verified by ray tracing simulations within a 25 cm diameter DR-CMPC. An adjustment of the regular intervals to 1 m can be achieved in both designs. The overall astigmatism of the design with an effective OPL of 74.72 m is only 9.30 × 10(−6) mm, which is four orders of magnitude smaller than that of the traditional CMPC with similar geometric parameters. MDPI 2018-08-15 /pmc/articles/PMC6111760/ /pubmed/30111713 http://dx.doi.org/10.3390/s18082680 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Zheng
Guo, Yin
Ming, Xianshun
Sun, Liqun
Generalized Optical Design of the Double-Row Circular Multi-Pass Cell
title Generalized Optical Design of the Double-Row Circular Multi-Pass Cell
title_full Generalized Optical Design of the Double-Row Circular Multi-Pass Cell
title_fullStr Generalized Optical Design of the Double-Row Circular Multi-Pass Cell
title_full_unstemmed Generalized Optical Design of the Double-Row Circular Multi-Pass Cell
title_short Generalized Optical Design of the Double-Row Circular Multi-Pass Cell
title_sort generalized optical design of the double-row circular multi-pass cell
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6111760/
https://www.ncbi.nlm.nih.gov/pubmed/30111713
http://dx.doi.org/10.3390/s18082680
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