InAs-Nanowire-based Broadband Ultrafast Optical Switch

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2019-07-18
Major/Subject
Mcode
Degree programme
Language
en
Pages
4429-4436
Series
Journal of Physical Chemistry Letters, Volume 10, issue 15
Abstract
Due to their tunable optical properties with various shapes, sizes and compositions, nanowires (NWs) have been regarded as a class of semiconductor nanostructures with great potential for photodetectors, light-emitting diodes, gas sensors, microcavity lasers, optical modulators and converters. Indium arsenide (InAs), an attractive III-V semiconductor NW with the advantages of narrow bandgap and large electron mobility, has attracted considerable interest in infrared optoelectronic and photonic devices. Here, we studied the ultrafast carrier dynamics and nonlinear optical responses of InAs NWs ranging from 1.0 to 2.8 µm, and demonstrated the InAs-NW-based ultrafast broadband optical switch for passively Q-switching in all-solid-state laser systems. Furthermore, we achieved ultrafast optical modulation for laser mode-locking at 1.0 μm, paving the way for their applications in the field of ultrafast optics. These exotic optical properties indicate that InAs NWs have significant potential for various optoelectronic and photonic devices, especially in the mid-infrared wavelength range.
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Keywords
nanowires, Nanowire
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Citation
Liu , J , Khayrudinov , V , Yang , H , Sun , Y , Matveev , B , Remennyi , M , Yang , K , Haggren , T , Lipsanen , H , Wang , F , Zhang , B & He , J 2019 , ' InAs-Nanowire-based Broadband Ultrafast Optical Switch ' , Journal of Physical Chemistry Letters , vol. 10 , no. 15 , pp. 4429-4436 . https://doi.org/10.1021/acs.jpclett.9b01626