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Structural, Optical and Electrical Studies on Multi-Functional Organic Single Crystals
(2018-07-09)
In this thesis, the physical properties of certain multi-functional organic crystals were studied in detail. This study involves the growth of single crystals of Glucuronic acidγ-lactone (GAL), Imidazoliumtartarate (IMLT), ...
Topology and Quantum Phases of Low Dimensional Fermionic Systems
(2018-05-21)
In this thesis, we study quantum phase transitions and topological phases in low dimensional fermionic systems. In the first part, we study quantum phase transitions and the nature of currents in one-dimensional systems, ...
Experiments on the 852 nm D2 Line of 133Cs with a Diode Laser System and their use in Measurement of the Permanent Electric Dipole Moment of the Electron
(2018-07-14)
We give a brief introduction to atomic physics and the motivation behind our experiments in the first chapter. The electron’s electric dipole moment is an interesting quantity which is yet to be measured. In the 3rd Chapter, ...
The Cosmic Population of Extended Radio Sources : A Radio-Optical Study
(2017-09-27)
This thesis presents studies of cosmic populations of extragalactic radio sources. The problems selected for this thesis are 1) the derivation of constraints on the emergence of new sub-mJy populations at flux density below ...
Study of Optical Properties of Semiconductor Quantum Dot Based Hybrid Nano Assemblies
(2017-11-28)
Over the last few decades, a vast research is going on, to study the optical properties of the nano particles i.e., metal and semiconductors thoroughly. Till date most of the optical studies are based on single particle ...
High-Resolution Spectroscopy in Atoms Using Coherent Control
(2017-10-26)
The subject of this thesis is the study of coherent interaction of light with matter (atoms) to improve the precision measurements and techniques. Special attention is drawn to get the narrow subnatural electromagnetically ...
Mixed Alkali Effect in Oxyfluoro Vanadate Glasses And The Effect of Rare Earth Ions on Oxyfluoro Tellurite Glasses - A Spectroscopic Study
(2017-09-20)
The main motivation of this thesis is to study the long standing problem of mixed alkali effect (MAE) in oxyfluro vanadate glass systems from the point of view of structural arrangement and to investigate the effect of two ...
Investigation of Nonlinearities in Graphene Based NEMS
(2017-10-05)
Nanoelectromechanical systems (NEMS) have drawn considerable attention towards several sensing applications such as force, spin, charge and mass. These devices due to their smaller size, operate at very high frequencies ...
Tailoring of fields and development of multipole expansion in planar ion trap geometries
In this research work two studies have been taken up: (1) to provide a systematic method
to linearize and tailor fields in planar ion trap geometries. The proposed method is general
and is demonstrated on two trap ...
Investigations on deep-level defects in HgTe nanocrystals-based photovoltaic devices using a novel instrumentation for Deep Level Transient Spectroscopy
Colloidally produced nanocrystals (NCs) arranged in thin films hold promise for next-generation semiconductors. These NCs offer tunability in semiconductor properties due to their size, shape, composition, and surface ...