Laguerre-Gaussian vortex mode generation from astigmatic semiconductor microcavity


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Title:	Laguerre-Gaussian vortex mode generation from astigmatic semiconductor microcavity
Authors:	Nakagawa, Kohki Browse this author
	Yamane, Keisaku Browse this author →KAKEN DB
	Morita, Ryuji Browse this author →KAKEN DB
	Toda, Yasunori Browse this author →KAKEN DB
Issue Date:	1-Apr-2020
Publisher:	IOP Publishing
Journal Title:	Applied Physics Express (APEX)
Volume:	13
Issue:	4
Start Page:	042001
Publisher DOI:	10.35848/1882-0786/ab7bf7
Abstract:	Laguerre-Gaussian (LG) vortex mode generations are demonstrated by employing the optical injection of a higher-order transverse mode into a vertical cavity surface emitting laser. In addition to the coherent LG injection, Hermite-Gaussian (HG) injection also enable LG mode generation, where the chirality is controllable by the HG mode angle of the injection beam. The result can be well understood when we consider the astigmatic Gouy phase shifts within the microcavity. HG induced vortex generation eases the symmetrical requirements of the cavity and thus extends flexibility as regards the design and fabrication of vortex lasers.
Rights:	© [2020] The Japan Society of Applied Physics
Rights:	https://creativecommons.org/licenses/by/4.0/
Type:	article
URI:	http://hdl.handle.net/2115/77734
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)

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