Efficient Laguerre-Gaussian mode conversion for orbital angular momentum resolved spectroscopy


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/54705

Title:	Efficient Laguerre-Gaussian mode conversion for orbital angular momentum resolved spectroscopy
Authors:	Toda, Y. Browse this author →KAKEN DB
	Shigematsu, K. Browse this author
	Yamane, K. Browse this author
	Morita, R. Browse this author
Keywords:	Diffraction and scattering
	Optical angular momentum and its quantum aspects
	Laser spectroscopy
Issue Date:	1-Nov-2013
Publisher:	Elsevier science bv
Journal Title:	Optics communications
Volume:	308
Start Page:	147
End Page:	151
Publisher DOI:	10.1016/j.optcom.2013.05.050
Abstract:	The orbital angular momentum (OAM) resolved spectroscopy is being applied to various research fields associated with optical vortices or Laguerre-Gaussian (LG) beams, in which the key technique is to convert LG beams to a fundamental Gaussian (HG equivalent to HG(00)) beam. In this work, we propose a method to realize efficient mode conversion by using spiral phase modulations. Numerical simulations and experiments are carried out to compare our proposal with the standard technique using rotational phase modulations. The results reveal that our proposed method improves the uniformity of the conversion efficiency across various OAM, allowing us to obtain precise OAM spectra. (C) 2013 Elsevier B.V. All rights reserved.
Type:	article (author version)
URI:	http://hdl.handle.net/2115/54705
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 戸田泰則

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