Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"phonon spectroscopy"”.
-
Phonon Spectroscopy and Low-Dimensional Electron Systems
… propagation of pulses of nonequilibrium acoustic phonons and their interaction with semiconductor nanostructures are investigated. Such studies can give unique information about the properties of low-dimensional electron systems, but in order to interpret the experiments and to understand the …
-
Coherent Terahertz Control and Ultrafast Spectroscopy of Layered Antiferromagnets
… the ongoing effort of developing new ultrafast spectroscopy tools, utilizing them to probe lattice, magnetic, and electronic properties, and gaining active control over them. Specifically, it investigates the induction of a new magnetic state with net magnetization using intense low-energy …
-
Ultrafast Probing of Nonlinear Dynamics in Quantum Materials: Beyond Linear Response Probes
… that remains hidden to equilibrium probes. Novel spectroscopy techniques, such as coherent phonon spectroscopy, transient absorption spectroscopy, second harmonic generation microscopy, and high field THz excitation spectroscopy, are capable of probing the properties of quantum materials that are …
-
Structural dynamics of photoexcited nanolayered perovskites studied by ultrafast x-ray diffraction
… energy from local excitations via delocalized phonon modes of the samples. The complex deformations in tailored multilayers are identified to give rise to highly nonlinear x-ray diffraction responses due to transient interference effects. The understanding of such effects and the ability to …
-
Probing Coherent States and Nonlinear Properties in Multifunctional Material Systems
… and controlling the fundamental electronic, phononic, and spin properties of several classes of materials through nonequilibrium and nonlinear light-matter interactions, coupled with a novel design of the material phases, interfaces, and heterostructures. This research directly addresses the …