UM
Enhancement of two-photon absorption photoresponse based on whispering gallery modes
Chen, Zhiyang; Lou, Guanlin; Zhu, Hai; Chen, Anqi; Wu, Yanyan; Ren, Yuhao; Li, Jinyu; Qiu, Zhiren; Gui, Xuchun; Tang, Zikang
2018-08-07
Source PublicationNANOSCALE
ISSN2040-3364
Volume10Issue:29Pages:14047-14054
AbstractNonlinear multiphoton absorption technology is crucial for developing novel optoelectronic devices and nanophotonics. The large enhancement of two-photon absorption (TPA) photoresponse by a high Q-factor whispering gallery mode (WGM) resonance based on a single-microwire (MW) self-formed hexagonal cavity was investigated comprehensively in this paper. The typical quadratic relationship of photocurrent as a function of incident power indicated that excited carriers resulted from a third-order nonlinear mechanism. Moreover, the photocurrent response had a dramatic dependence on the spatial location of the focus spot of the incident photons. It was demonstrated that the TPA photocurrent response in the resonant WGM mode was one-order of magnitude larger than the response in the Fabry-Perot mode. Furthermore, the photoresponse characteristics of TPA detection exhibited sensitive dependence on the incident laser polarization direction.
DOI10.1039/c8nr02806k
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000443633600028
PublisherROYAL SOC CHEMISTRY
The Source to ArticleWOS
Fulltext Access
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Document TypeJournal article
CollectionUniversity of Macau
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GB/T 7714
Chen, Zhiyang,Lou, Guanlin,Zhu, Hai,et al. Enhancement of two-photon absorption photoresponse based on whispering gallery modes[J]. NANOSCALE,2018,10(29):14047-14054.
APA Chen, Zhiyang.,Lou, Guanlin.,Zhu, Hai.,Chen, Anqi.,Wu, Yanyan.,...&Tang, Zikang.(2018).Enhancement of two-photon absorption photoresponse based on whispering gallery modes.NANOSCALE,10(29),14047-14054.
MLA Chen, Zhiyang,et al."Enhancement of two-photon absorption photoresponse based on whispering gallery modes".NANOSCALE 10.29(2018):14047-14054.
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