Year: 2015
Type: article
Abstract: Many remarkable properties of graphene are derived from its large energy window for Dirac-like electronic states and have been explored for applications in electronics and photonics. In addition, strong electron-phonon interaction in graphene has led to efficient photo-thermo energy conversions, which has been harnessed for energy applications. By combining the wavelength independent absorption property and the efficient photo-thermo energy conversion, here we report a new type of applications in sound wave generation underlined by a photo-thermo-acoustic energy conversion mechanism. Most significantly, by utilizing ultrafast optical pulses, we demonstrate the ability to control the phase of sound waves generated by the photo-thermal-acoustic process. Our finding paves the way for new types of applications for graphene, such as remote non-contact speakers, optical-switching acoustic devices, etc.
Source: Scientific Reports
DOI: 10.1038/srep10582
Authors: Yichao Tian, He Tian, Y. L. Wu, L. L. Zhu, L. Q. Tao, W. Zhang, Y. Shu, D. Xie, Y. Yang, Z. Y. Wei, X. H. Lu, Tian-Ling Ren, Chih-Kang Shih, Jimin Zhao
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
Awards: 层状结构物质量子特性的超快光谱研究, G1218191859, G1544701233, G1705774059, G2132335104, G249512967, G285299692, G4110417826, G5375618731, Tailoring Light-Matter Interaction in Plasmonic Nanostructures based on Epitaxial Metallic Films: From Classical to Quantum Regime, G6368645581, G7163126717, G7395225799, G7571028772, G7629651411, 面向大气灰霾监测的自供电低功耗纳米谐振器基础研究
OpenAlex ID: W651284339