Abstract：
:Extensive studies have been performed on random lasers in which multiple-scattering feedback is used to generate coherent emission. Q-switching and mode-locking are well-known routes for achieving high peak power output in conventional lasers. However, in random lasers, the ubiquitous random cavities that are formed by multiple scattering inhibit energy storage, making Q-switching impossible. In this paper, widespread Rayleigh scattering arising from the intrinsic micro-scale refractive-index irregularities of fiber cores is used to form random cavities along the fiber. The Q-factor of the cavity is rapidly increased by stimulated Brillouin scattering just after the spontaneous emission is enhanced by random cavity resonances, resulting in random Q-switched pulses with high brightness and high peak power. This report is the first observation of high-brightness random Q-switched laser emission and is expected to stimulate new areas of scientific research and applications, including encryption, remote three-dimensional random imaging and the simulation of stellar lasing.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Tang Y,Xu Jdoi
10.1038/srep09338subject
Has Abstractpub_date
2015-03-23 00:00:00pages
9338issn
2045-2322pii
srep09338journal_volume
5pub_type
杂志文章abstract：:This article aims to develop a generalized model calculation model to be applicable to the general theory of interaction potentials with reference to the stoichiometric elpasolite type crystals. In this study, we have chosen to report both a theoretical model and a calculation strategy to undertake semi empirical calc...
journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-019-55695-6
更新日期：2019-12-13 00:00:00
abstract：:By combining the two basic deformation mechanisms for auxetic open-cell metamaterials, re-entrant angle and chirality, new hybrid chiral mechanical metamaterials are designed and fabricated via a multi-material 3D printer. Results from mechanical experiments on the 3D printed prototypes and systematic Finite Element (...
journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-01420-0
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep05291
更新日期：2014-06-13 00:00:00
abstract：:Antidiabetic medication may modify the incidence of hepatocellular carcinoma (HCC). We aimed to compare the use of different antidiabetic strategies and the incidence of HCC. PubMed, Embase.com and Cochrane Library databases were searched up to 31 October 2015 and randomized controlled trials (RCTs), cohort studies or...
journal_title：Scientific reports
pub_type： 杂志文章,meta分析,评审
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更新日期：2016-09-19 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-68741-5
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep12079
更新日期：2015-07-15 00:00:00
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-017-00755-y
更新日期：2017-04-04 00:00:00
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journal_title：Scientific reports
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更新日期：2016-12-14 00:00:00
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pub_type： 杂志文章
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更新日期：2018-10-12 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2017-08-29 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2015-12-22 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep21460
更新日期：2016-02-18 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/srep09094
更新日期：2015-03-13 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
doi：10.1038/s41598-020-76095-1
更新日期：2020-11-05 00:00:00
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journal_title：Scientific reports
pub_type： 已发布勘误
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更新日期：2020-07-16 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
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journal_title：Scientific reports
pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Scientific reports
pub_type： 杂志文章
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更新日期：2012-01-01 00:00:00
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journal_title：Scientific reports
pub_type： 杂志文章
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pub_type： 杂志文章
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更新日期：2017-03-08 00:00:00
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journal_title：Scientific reports
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