Azobenzene - functionalized polyelectrolyte nanolayers as ultrafast optoacoustic transducers
- We introduce azobenzene-functionalized polyelectrolyte multilayers as efficient, inexpensive optoacoustic transducers for hyper-sound strain waves in the GHz range. By picosecond transient reflectivity measurements we study the creation of nanoscale strain waves, their reflection from interfaces, damping by scattering from nanoparticles and propagation in soft and hard adjacent materials like polymer layers, quartz and mica. The amplitude of the generated strain epsilon similar to 5 x 10(-4) is calibrated by ultrafast X-ray diffraction.
| Author details: | Elena S. Pavlenko, Mathias Sander, S. Mitzscherling, Jan-Etienne PudellORCiDGND, Flavio Zamponi, M. Roessle, Andre BojahrGND, Matias BargheerORCiDGND |
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| DOI: | https://doi.org/10.1039/c6nr01448h |
| ISSN: | 2040-3364 |
| ISSN: | 2040-3372 |
| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/27341685 |
| Title of parent work (English): | Nanoscale |
| Publisher: | Royal Society of Chemistry |
| Place of publishing: | Cambridge |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2016 |
| Publication year: | 2016 |
| Release date: | 2020/03/22 |
| Volume: | 8 |
| Number of pages: | 6 |
| First page: | 13297 |
| Last Page: | 13302 |
| Funding institution: | German Science Foundation DFG via the graduate school SALSA; Volkswagen Foundation via "Experiment" |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
