Advisors
Now showing items 1-14 of 14
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Carrier dynamics in silicon and Germanium nanocrystals
(Bilkent University, 2008)This is a computational work on the Si and Ge nanocrystals (NCs) embedded in wide band gap host matrices. As the initial task, extensive ab initio work on the structural and electronic properties of various NC host ... -
Electronic structure and optical properties of monolayer semiconductors: a computational study
(Bilkent University, 2021-09)Interest on monolayer semiconductors is rapidly growing in recent years. One of the prominent members is hexagonal boron nitride (h-BN). At room tem-perature, it harbors an environment similar to semiconductor vacuum for ... -
High field transport phenomena in wide bandgap semiconductors
(Bilkent University, 2003)The Ensemble Monte Carlo (EMC) method is widely used in the field of computational electronics related to the simulation of the state of the art devices. Using this technique our specific intention is to scrutinize the ... -
Hyperfine and electric quadrupolar interaction-driven loschmidt echo in nanoscale nuclear spin baths
(Bilkent University, 2018-07)Environmental dynamics in solid state matrix is of much importance for quantum information processing and storage purposes. Here, we first give a basic recipe to get Loschmidt echo (LE) which is a measure of decoherence ... -
Large-scale semi-empirical pseudopotential electronic structure of self-assembled ingaas quantum dots
(Bilkent University, 2018-08)The so-called second quantum revolution emerged at the beginning of the second millennium, opening up a path to realization of spin-qubit-based quantum computing by means of controlling and protecting quantum coherent ... -
Nuclear spin relaxation and spin squeezing under electric quadrupole interaction
(Bilkent University, 2015-08)Nuclear spins dynamics recently gained prominence for semiconductor quantum information technologies. At least two rami cations can be mentioned within this context: rst, as a decoherence channel for carrier spin qubit ... -
On the strain in silicon nanocrystals
(Bilkent University, 2009)In this Thesis we present our achievements towards an understanding of atomistic strain mechanisms and interface chemistry in silicon nanocrystals. The structural control of silicon nanocrystals embedded in amorphous ... -
Optomechanically induced transparency in a PT symmetric system
(Bilkent University, 2020-08)Optomechanical systems have attracted attention recently in various areas of physics, and are widely used with the purpose of laser cooling, gravitational wave detection, preparation of entangled states, cooling of ... -
Refractive index tuning with Burstein-Moss effect in Indium Nitrite under photoexcitation
(Bilkent University, 2009)The band filling effect due to free carriers introduces a shift in the absorption edge, which in turn modifies the refractive index of the medium through the Kramers-Kronig relation. This is known as the Burstein-Moss ... -
Silicon nanowire-based complex structures : A Large-scale atomistic electronic structure and ballistic transport
(Bilkent University, 2014)While the hierarchical assembling as well as the dramatic miniaturization of Si nanowires (NWs) are on-going, an understanding of the underlying physics is of great importance to enable custom design of nanostructures ... -
Slow light in Germanium nanocrystals
(Bilkent University, 2009)The phenomena of quantum coherence has been applied with great success in the atomic systems. For optoelectronic applications the interest is inherently directed towards the semiconductor heterostructures. Large number ... -
Strained empirical pseudopotential generation from hybrid density functionals: GaAs, InAs,GaSb, InSb
(Bilkent University, 2015-08)Self-assembled quantum dots composed of III-V compounds receive considerable attention due to their potential applications on spintronics and quantum informa- tion processing. Here, lattice mismatch between two materials ... -
Ten million-atom InGaAs embedded quantum dot electron g factor calculations using semi-empirical pseudopotentials
(Bilkent University, 2022-10)Quantum technologies rely on key capabilities such as electron spin control over the full-Bloch sphere, generation of indistinguishable single photons, or entangled photon pairs. For all these purposes, arguably the most ... -
A theoretical study of strained monolayer transition metal dichalcogenides based on simple band structures
(Bilkent University, 2019-10)This doctoral thesis deals with optoelectronic and geometric band properties of two-dimensional transition metal dichalcogenides (TMDs) under applied strain. First, we analyze various types of strain for the K valley ...
