Item type |
文献 / Documents(1) |
公開日 |
2018-11-12 |
アクセス権 |
|
|
アクセス権 |
open access |
資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
出版社版DOI |
|
|
|
関連識別子 |
https://doi.org/10.1038/s41598-018-29403-9 |
|
|
関連名称 |
10.1038/s41598-018-29403-9 |
出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
タイトル |
|
|
タイトル |
Dual terahertz comb spectroscopy with a single free-running fibre laser |
著者 |
Hu, Guoqing
ミズグチ, タツヤ
オエ, リョウ
ニッタ, カズキ
Zhao, Xin
南川, 丈夫
Li, Ting
Zheng, Zheng
安井, 武史
|
抄録 |
|
|
内容記述 |
Dual terahertz (THz) comb spectroscopy enables high spectral resolution, high spectral accuracy, and broad spectral coverage; however, the requirement for dual stabilized femtosecond lasers hampers its versatility. We here report the first demonstration of dual THz comb spectroscopy using a single free-running fibre laser. By tuning the cavity-loss-dependent gain profile with an intracavity Lyot filter together with precise management of the cavity length and dispersion, dual-wavelength comb light beams with slightly detuned repetition frequencies are generated in a single laser cavity. Due to sharing of the same cavity, such comb light beams suffer from common-mode fluctuation of the repetition frequency, and hence the corresponding frequency difference between them is passively stable around a few hundred hertz within millihertz fluctuation. While greatly reducing the size, complexity, and cost of the laser source by use of a single free-running fibre laser, the dual THz comb spectroscopy system maintains a spectral bandwidth and dynamic range of spectral power comparable to a system equipped with dual stabilized fibre lasers, and can be effectively applied to high-precision spectroscopy of acetonitrile gas at atmospheric pressure. The demonstrated results indicate that this system is an attractive solution for practical applications of THz spectroscopy and other applications. |
書誌情報 |
en : Scientific Reports
巻 8,
p. 11155,
発行日 2018-07-24
|
収録物ID |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
20452322 |
出版者 |
|
|
出版者 |
Springer Nature |
備考 |
|
|
値 |
Supplementary Information : srep_8_11155_s1.docx |
権利情報 |
|
|
権利情報 |
© The Author(s) 2018 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 http://creativecommons.org/licenses/by/4.0/. |
EID |
|
|
識別子 |
341306 |
言語 |
|
|
言語 |
eng |