{"id":5713,"date":"2023-03-17T12:22:00","date_gmt":"2023-03-17T11:22:00","guid":{"rendered":"https:\/\/www.cailabs.com\/technical-publications-and-conferences\/rotational-doppler-shift-of-the-light-transmitted-behind-a-rotating-object-with-rotational-symmetries-rotational-doppler-shift-of-the-transmitted-light\/"},"modified":"2024-02-26T13:24:14","modified_gmt":"2024-02-26T12:24:14","slug":"rotational-doppler-shift-of-the-light-transmitted-behind-a-rotating-object-with-rotational-symmetries-rotational-doppler-shift-of-the-transmitted-light","status":"publish","type":"publication","link":"https:\/\/www.cailabs.com\/fr\/publications-techniques-conferences\/reseaux-fibres\/rotational-doppler-shift-of-the-light-transmitted-behind-a-rotating-object-with-rotational-symmetries-rotational-doppler-shift-of-the-transmitted-light\/","title":{"rendered":"Rotational Doppler shift of the light transmitted behind a rotating object with rotational symmetries: rotational Doppler shift of the transmitted light"},"content":{"rendered":"\n<p><strong>Authors: Olivier Emile<sup>1<\/sup>, Janine Emile<sup>1<\/sup>, Christian Brousseau<sup>1<\/sup>, Tangi le Guennic<sup>2<\/sup>, Pu Jian<sup>2<\/sup>, and Guillaume Labroille<sup>2<\/sup><\/strong><\/p>\n\n\n\n<p><sup>1<\/sup>Universit\u00e9 de Rennes 1<\/p>\n\n\n\n<p><sup>2<\/sup>Cailabs, Rennes (France)<\/p>\n\n\n\n<p><strong>Abstract<\/strong><\/p>\n\n\n\n<p>We investigate both theoretically and experimentally the decomposition of a fundamental Gaussian beam transmitted behind an absorbing propeller-like object. We use a Laguerre Gaussian basis which modes carry orbital angular momentum. The main contributing components correspond to modes having the same rotational symmetry as the object, thus enabling pattern recognition. When the object is rotated, the frequency of the modes of the basis experiences a rotational Doppler shift characterizing the movement, that can be easily detected. Potential applications in target recognition and rotation identification are then considered, including rotational Doppler shifts using microwaves.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/spie.org\/Publications\/Proceedings\/Paper\/10.1117\/12.2654580?SSO=1\">More information<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The European Physical Journal D 2022<\/p>\n","protected":false},"author":2,"parent":0,"template":"","categorie-publication":[100],"class_list":["post-5713","publication","type-publication","status-publish","hentry","categorie-publication-reseaux-fibres"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rotational Doppler shift of the light transmitted behind a rotating object with rotational symmetries: rotational Doppler shift of the transmitted light - 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