Laser-generated ultrasound with optical fibres using functionalised carbon nanotube composite coatings
Laser-generated ultrasound with optical fibres using functionalised carbon nanotube composite coatings
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DOI：
10.1063/1.4873678
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发表时间：
2014-04-28
影响因子：
4
通讯作者：
Desjardins, Adrien E.
中科院分区：
文献类型：
--
作者：
Colchester, Richard J.;Mosse, Charles A.;Desjardins, Adrien E.
光学超声换能器是通过在光纤上涂上碳纳米管（CNT）和聚二甲基硅氧烷（PDMS）的复合材料制成的。碳纳米管在聚二甲基硅氧烷中的溶解，以创建复合材料，促进与油胺官能化。使用浸涂将复合材料表面施加到光纤上。在脉冲激光激发下，在涂覆端面处的3.6 MPa和4.5 μ Pa的超声压力分别用105和200 lm的光纤芯直径实现。结果表明，在光纤上的CNT-PDMS复合涂层可能是可行的替代电超声换能器在微型超声成像探头。(C)2014年作者。所有文章内容，除非另有说明，是根据知识共享署名3.0未移植许可证许可。
Optical ultrasound transducers were created by coating optical fibres with a composite of carbon nanotubes (CNTs) and polydimethylsiloxane (PDMS). Dissolution of CNTs in PDMS to create the composite was facilitated by functionalisation with oleylamine. Composite surfaces were applied to optical fibres using dip coating. Under pulsed laser excitation, ultrasound pressures of 3.6 MPa and 4.5 mu Pa at the coated end faces were achieved with optical fibre core diameters of 105 and 200 lm, respectively. The results indicate that CNT-PDMS composite coatings on optical fibres could be viable alternatives to electrical ultrasound transducers in miniature ultrasound imaging probes. (C) 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.