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.
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Showing 1 to 10 of 10 for “"ballistic regime"”.
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Hydrodynamic and ballistic transport in high-mobility GaAs/AlGaAs heterostructures
… In this work, we explore non-diffusive transport regimes, namely, the ballistic and hydrodynamic regimes in a high-mobility two-dimensional electron system in a GaAs quantum well in a GaAs/AlGaAs heterostructure. The hydrodynamic regime exhibits collective fluid-like behavior of electrons which …
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Quasiparticle beam profile measurements in superfluid helium 3 - B
This thesis details experiments in the ballistic regime of superfluid 3He-B at temperatures around 100 ➭K. In this thesis, the quasiparticle beam profile from a Black-Body radiator and a vibrating wire resonator is measured using a quasiparticle camera which consists of 25 tuning forks. The …
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Quantification and Reconstruction in Photoacoustic Tomography
… photoacoustic microscopy: AR-PAM) in the optical ballistic regime and in the optical diffusive regime, respectively. The data acquisition speed in photoacoustic computed tomography: PACT) is limited by the laser repetition rate and the number of parallel ultrasound detecting channels. …
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B phase nucleation and A-B interface dynamics in superfluid 3He
… is obtained in several different dynamical regimes (depending on temperature and pressure), including the (currently) experimentally relevant ballistic regime where the Andreev scattering of normal excitations off the moving interface strongly influences the dynamics. The theoretical …
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B phase nucleation and A-B interface dynamics in superfluid helium-3
… is obtained in several different dynamical regimes (depending on temperature and pressure), including the (currently) experimentally relevant ballistic regime where the Andreev scattering of normal excitations off the moving interface strongly influences the dynamics. The theoretical …
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High-Speed Photoacoustic Microscopy In Vivo
… resolution for deep imaging beyond the quasi-ballistic regime. Its high sensitivity to optical absorption enables the imaging of important physiological parameters, such as hemoglobin concentration and oxygen saturation, which closely correlate with angiogenesis and hypermetabolism--two …
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FLOW FORMING OF CAPILLARY INTERFACES: DROP IMPACT AND THE MOBILE CONTACT LINE
… focus is on drop depositions in the capillary-ballistic regime. During drop impact, the falling drop’s pre-impact energy transforms into fast-time scale motion of the three-phase contact-line (CL). The CL then comes to rest and the LG interface oscillates, viscously dissipating remaining energy …
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Submicron-resolution Photoacoustic Microscopy of Endogenous Light-absorbing Biomolecules
… at <1 mm depth in biological tissue (the optical ballistic regime). OR-PAM has been applied successfully to structural and functional imaging of blood vasculature and red blood cells in vivo. Any molecules which absorb sufficient light at certain wavelengths can potentially be imaged by PAM. …
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Superconducting Electron Transport in Graphene-Based Josephson Junctions
… the supercurrent transport in three different regimes dependent on the electronic properties of graphene: diffusive, ballistic and quantum Hall (QH). In a diffusive device, the mean free path (scattering length) ξ_S of an electron is shorter than the length between the SC contacts, L. In the …