Brillouin scattering of visible and hard X-ray photons from optically synthesized phonon wavepackets
- We monitor how destructive interference of undesired phonon frequency components shapes a quasi-monochromatic hypersound wavepacket spectrum during its local real-time preparation by a nanometric transducer and follow the subsequent decay by nonlinear coupling. We prove each frequency component of an optical supercontinuum probe to be sensitive to one particular phonon wavevector in bulk material and cross-check this by ultrafast x-ray diffraction experiments with direct access to the lattice dynamics. Establishing reliable experimental techniques with direct access to the transient spectrum of the excitation is crucial for the interpretation in strongly nonlinear regimes, such as soliton formation.
| Author details: | Andre BojahrGND, Marc HerzogORCiDGND, Steffen MitzscherlingGND, Lena Maerten, Daniel Schick, J. Goldshteyn, Wolfram LeitenbergerGND, R. Shayduk, P. Gaal, Matias BargheerORCiDGND |
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| DOI: | https://doi.org/10.1364/OE.21.021188 |
| ISSN: | 1094-4087 |
| Title of parent work (English): | Optics express : the international electronic journal of optics |
| Publisher: | Optical Society of America |
| Place of publishing: | Washington |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2013 |
| Publication year: | 2013 |
| Release date: | 2017/03/26 |
| Volume: | 21 |
| Issue: | 18 |
| Number of pages: | 10 |
| First page: | 21188 |
| Last Page: | 21197 |
| Funding institution: | Leibnitz graduate school "Dynamics in new Light"; BMBF [05K10IP1] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
| Publishing method: | Open Access |
