Dataset Information


Coherent Generation of Photo-Thermo-Acoustic Wave from Graphene Sheets.

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.


PROVIDER: S-EPMC4650607 | BioStudies | 2015-01-01T00:00:00Z

REPOSITORIES: biostudies

Similar Datasets

2019-01-01 | S-EPMC6746718 | BioStudies
1000-01-01 | S-EPMC5719060 | BioStudies
2017-01-01 | S-EPMC5459078 | BioStudies
2019-01-01 | S-EPMC6746697 | BioStudies
2019-01-01 | S-EPMC6660208 | BioStudies
2019-01-01 | S-EPMC6835304 | BioStudies
2017-01-01 | S-EPMC6431991 | BioStudies
2018-01-01 | S-EPMC6189592 | BioStudies
1000-01-01 | S-EPMC5064310 | BioStudies
1000-01-01 | S-EPMC4814578 | BioStudies