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Particles and Fields in Partial-differential-equation Models for fluid and Superfluid Turbulence
We have shown that uniformly rotating vortex-containing gravitationally-bound
solutions of the GPPE can be generated by starting the evolution from initial data
obtained by integrating to convergence the (imaginary-time) ...
Light and magnetic field induced coherence effects in atoms
In this thesis, we have studied the coherence effects in atoms induced by light and a magnetic field. After giving an introduction to the contents of the thesis, details about the theory and the experimental setup used are ...
Impact of van der Waals epitaxy on structural and optoelectronic properties of layered solids
Emergence of Graphene, Transition metal dichalcogenides (TMDCs) and other van
der Waals materials promises to rede fine the building blocks of the future materials and
technologies. These materials have gained enormous ...
Sculpting colloidal membranes through phase transformations
Shaping macroscopic 2-D thin elastic sheets through differential strains in the system is a widely studied phenomenon applicable in diverse areas such as flexible electronics, origami and tissue growth. In contrast, at the ...
Probing charge-density waves and superconductivity in low-dimensional systems
The recent advent of two-dimensional materials has led to the discovery of materials
with fascinating phase diagrams. These systems have exciting electronic phases which
coexist or compete with each other. Here in this ...
Study of room temperature coupling of colloidal quantum dots to plasmonic arrays and metamaterials: from single quantum dot to quantum dot assemblies
There is much current interest in coupling emitters, such as fluorescing dye molecules and semiconductor
quantum dots to plasmonic systems. Controlling the electromagnetic interactions between quantum
emitters and the ...
Investigation of the Thermoelectric Properties of Single and Double Substituted Cu12Sb4S13 Tetrahedrite
According to the current energy consumption, out of the total energy supplied as input in various sources such as power plants, factories, automobiles, etc., only around 30% of the energy is converted to useful work. The ...
Ultrafast Study of Layered 3D Topological Insulators, Graphene-Gold Hybrid Plasmonic Nanostructure and Ultrathin Gold Nanowires
In a typical time-resolved pump-probe spectroscopy, ultrafast laser pulses (pulse width ~ 100
fs) are utilized to induce a perturbation in the material of study within a time much shorter
than the characterisitic lifetime ...
Cooling, heating and gas evolution in the circumgalactic medium
The Universe at large scales consists of gravitationally bound dark matter halos. Ordinary gas inside the halos emits
and also absorbs the radiation from background sources leaving distinct signatures for multi-wavelength ...