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Title: Dually modulated photonic crystals enabling high-power high-beam-quality two-dimensional beam scanning lasers
Authors: Sakata, Ryoichi
Ishizaki, Kenji
De Zoysa, Menaka
Fukuhara, Shin
Inoue, Takuya  kyouindb  KAKEN_id  orcid (unconfirmed)
Tanaka, Yoshinori
Iwata, Kintaro
Hatsuda, Ranko
Yoshida, Masahiro
Gelleta, John
Noda, Susumu  kyouindb  KAKEN_id
Author's alias: 坂田, 諒一
石﨑, 賢司
デ ゾイサ, メーナカ
福原, 真
井上, 卓也
田中, 良典
岩田, 錦太郎
初田, 蘭子
吉田, 昌宏
野田, 進
Keywords: Applied optics
Optical physics
Photonic crystals
Semiconductor lasers
Issue Date: 17-Jul-2020
Publisher: Springer Nature
Journal title: Nature Communications
Volume: 11
Thesis number: 3487
Abstract: Mechanical-free, high-power, high-beam-quality two-dimensional (2D) beam scanning lasers are in high demand for various applications including sensing systems for smart mobility, object recognition systems, and adaptive illuminations. Here, we propose and demonstrate the concept of dually modulated photonic crystals to realize such lasers, wherein the positions and sizes of the photonic-crystal lattice points are modulated simultaneously. We show using nano-antenna theory that this photonic nanostructure is essential to realize 2D beam scanning lasers with high output power and high beam quality. We also fabricate an on-chip, circuit-driven array of dually modulated photonic-crystal lasers with a 10 × 10 matrix configuration having 100 resolvable points. Our device enables the scanning of laser beams over a wide range of 2D directions in sequence and in parallel, and can be flexibly designed to meet application-specific demands.
Description: 電気的に2次元ビーム走査可能な新たなフォトニック結晶レーザーチップの開発に成功. 京都大学プレスリリース. 2020-07-22.
Order from chaos. 京都大学プレスリリース. 2020-11-18.
Rights: © The Author(s) 2020. 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. The 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
DOI(Published Version): 10.1038/s41467-020-17092-w
PubMed ID: 32681086
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