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Phonon spectroscopy with chirped shear and compressive acoustic pulses (2017)
Journal Article
Poyser, C. L., York, W., Srikanthreddy, D., Glavin, B., Linnik, T., Campion, R., …Kent, A. (in press). Phonon spectroscopy with chirped shear and compressive acoustic pulses. Physical Review Letters, 119, Article 255502. https://doi.org/10.1103/PhysRevLett.119.255502

Picosecond duration compressive and shear phonon wave packets injected into (311) GaAs slabs transform after propagation through ?1??mm into chirped acoustic pulses with a frequency increasing in time due to phonon dispersion. By probing the temporal... Read More about Phonon spectroscopy with chirped shear and compressive acoustic pulses.

Acousto-optical nanoscopy of buried photonic nanostructures (2017)
Journal Article
Czerniuk, T., Schneider, C., Kamp, M., Höfling, S., Glavin, B., Yakovlev, D., …Bayer, M. (2017). Acousto-optical nanoscopy of buried photonic nanostructures. Optica, 4(6), https://doi.org/10.1364/OPTICA.4.000588

We develop a nanoscopy method with in-depth resolution for layered photonic devices. Photonics often requires tailored light field distributions for the optical modes used, and an exact knowledge of the geometry of a device is crucial to assess its p... Read More about Acousto-optical nanoscopy of buried photonic nanostructures.

The effect of dynamical compressive and shear strain on magnetic anisotropy in a low symmetry ferromagnetic film (2017)
Journal Article
Linnik, T., Kats, V., Jäger, J., Salasyuk, A., Yakovlev, D., Rushforth, A., …Scherbakov, A. (2017). The effect of dynamical compressive and shear strain on magnetic anisotropy in a low symmetry ferromagnetic film. Physica Scripta, 92(5), Article 054006. https://doi.org/10.1088/1402-4896/aa6943

Dynamical strain generated upon excitation of a metallic film by a femtosecond laser pulse may become a versatile tool enabling control of magnetic state of thin _lms and nanostructures via inverse magnetostriction on a picosecond time scale. Here we... Read More about The effect of dynamical compressive and shear strain on magnetic anisotropy in a low symmetry ferromagnetic film.

Picosecond Control of Quantum Dot Laser Emission by Coherent Phonons (2017)
Journal Article
Czerniuk, T., Wigger, D., Akimov, A., Schneider, C., Kamp, M., Höfling, S., …Bayer, M. (2017). Picosecond Control of Quantum Dot Laser Emission by Coherent Phonons. Physical Review Letters, 118(13), Article 133901. https://doi.org/10.1103/PhysRevLett.118.133901

© 2017 American Physical Society. American Physical Society. A picosecond acoustic pulse can be used to control the lasing emission from semiconductor nanostructures by shifting their electronic transitions. When the active medium, here an ensemble o... Read More about Picosecond Control of Quantum Dot Laser Emission by Coherent Phonons.

Piezoelectric response to coherent longitudinal and transverse acoustic phonons in a semiconductor Schottky diode (2017)
Journal Article
Srikanthreddy, D., Glavin, B., Poyser, C. L., Henini, M., Lehmann, D., Jasiukiewicz, C., …Kent, A. (in press). Piezoelectric response to coherent longitudinal and transverse acoustic phonons in a semiconductor Schottky diode. Physical Review Applied, 7(2), Article 024014. https://doi.org/10.1103/PhysRevApplied.7.024014

We study the generation of microwave electronic signals by pumping a (311) GaAs Schottky diode with compressive and shear acoustic phonons, generated by femtosecond optical excitation of an Al _lm transducer and mode conversion at the Al-GaAs interfa... Read More about Piezoelectric response to coherent longitudinal and transverse acoustic phonons in a semiconductor Schottky diode.

Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N (2017)
Journal Article
Czerniuk, T., Ehrlich, T., Wecker, T., As, D., Yakovlev, D., Akimov, A., & Bayer, M. (2017). Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N. Physical Review Applied, 7(1), Article 014006. https://doi.org/10.1103/PhysRevApplied.7.014006

A picosecond acoustic pulse is used to study the photoelastic interaction in single zinc-blende GaN/AlxGa1−xN quantum wells. We use an optical time-resolved pump-probe setup and demonstrate that tuning the photon energy to the quantum well’s lowest e... Read More about Picosecond acoustics in single quantum wells of cubic GaN/(Al,Ga)N.