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1
Bulk inversion asymmetry effect on band structure and optical transition of a new class all-inorganic cubic perovskite nanoplatelet
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Journal Article -
2
OCT Intensity of the Region between Outer Retina Band 2 and Band 3 as a Biomarker for Retinal Degeneration and Therapy
Published 2024“…This study investigated the outer retina band (ORB) pattern and reflective intensity for the region between bands 2 and 3 (Dip) in three mouse models of inherited retinal degeneration (Rs1KO, TTLL5KO, RPE65KO) and in human AMD patients from the A2A database. …”
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Article -
3
Equalization by sub-band mint method for speech dereverberation
Published 2012“…In this sub-band MINT algorithm, the inverse filter is designed by using generalized discrete Fourier transformed (GDFT) filter-banks, where the full-band time-aligned RTFs are decomposed into equivalent sub-band filters prior to equalization. …”
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Thesis -
4
Terahertz dual-band metamaterial biosensor for cervical-cancer diagnostics
Published 2024“…This study highlights the potential of employing terahertz metamaterial structures as dual-band biosensors for the early detection of cancerous biological tissue. …”
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5
Compact x-ray source based on burst-mode inverse Compton scattering at 100 kHz
Published 2014“…The source is based on inverse Compton scattering of a high brightness electron bunch on a picosecond laser pulse. …”
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6
Investigating the EM performance of building materials for mid-band 5G in urban built environment: an exploratory study
Published 2024“…This comprehensive study encompasses various factors, including the choice of aggregate types (FAC and fine sand), different levels of Fe2O3 inclusions (2 wt% and 4 wt%), and channel frequencies within the 3300 to 3800 MHz frequency band (divided into five 100 MHz channels). Prior to the statistical analysis, |S21| parameters were measured using an S-band waveguide experiment setup. …”
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Thesis-Doctor of Philosophy -
7
Fundamental Bound on Topological Gap
Published 2024“…Applications of our theory to infrared absorption near topological band inversion, magnetic circular dichroism in Chern insulators, and topological gap in moiré materials are demonstrated.…”
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Unveiling the dual role of chemically synthesized copper doped zinc oxide for resistive switching applications
Published 2019“…PFM study exhibits the domain inversion with 180° polarization inversion by applying an external bias, evidencing its effectiveness for memory applications. …”
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Journal Article -
9
Quantum oscillations probe the Fermi surface topology of the nodal-line semimetal CaAgAs
Published 2020“…Nodal semimetals are a unique platform to explore topological signatures of the unusual band structure that can manifest by accumulating a nontrivial phase in quantum oscillations. …”
Journal article -
10
Nonreciprocal phenomena in superconductivity
Published 2024“…The first example that we discuss is nonreciprocal superconductivity, which occurs upon simultaneous breaking of inversion and time-reversal symmetries. Nonreciprocal superconductors describe certain classes of unconventional superconductors that include certain kinds of mixed-pairing and finite-momentum ones. …”
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Thesis -
11
Ultra-fast all-optical switching based on nanoantenna coupled to monolayer TMDs
Published 2023“…They are currently one of the frontiers of research. The band gaps of few-layer TMDs are in the visible and near-infrared regions, and their excitons have considerable binding energies at room temperature, high resonant oscillator strengths, and valley-selective circular dichroism due to spatial inversion symmetry breaking, which make TMDs particularly attractive. …”
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Thesis-Master by Coursework -
12
Optical study of excitonic complexes in transition metal dichalcogenides monolayers
Published 2021“…However, the distinct electronic band structure and possible many-particle components lead to complicated excitonic features especially in the photoluminescence spectra of W-based monolayers. …”
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Thesis-Doctor of Philosophy -
13
Phononic real Chern insulator with protected corner modes in graphynes
Published 2023“…We identify the nontrivial phononic band gaps, which are characterized by nontrivial real Chern numbers enabled by the spacetime inversion symmetry. …”
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Journal Article -
14
Investigation of solar cell carrier lifetime using photoconductance lifetime measurements
Published 2020“…The hole-selective contact is achieved by inducing a strong band bending in Si, arising from the high work function (≳ 5.5 eV) of the TMO, to result in a strong upward bending at the n-type Si, leading to carrier inversion at the Si surface. …”
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Final Year Project (FYP) -
15
Ideal type-II Weyl points in topological circuits
Published 2022“…By stacking two-dimensional (2D) layers of inductor-capacitor (LC) resonator dimers with the broken parity inversion symmetry (P), we achieve a strongly tilted band structure with two group velocities in the same direction, and topological surface states in an incomplete bandgap. …”
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Journal Article -
16
Quantum spin Hall effect and topological phase transition in InNxBiySb1−x−y/InSb quantum wells
Published 2017“…We confirm that such transition are topological phase transitions between a traditional insulator and a TI exhibiting QSH effect—by demonstrating the topologically protected edge-states using the bandstructure, edge-localized distribution of the wavefunctions and edge-state spin-momentum locking phenomenon, presence of non-zero conductance in spite of the Fermi energy lying in the bandgap window, crossover points of Landau levels in the zero-mode indicating topological band inversion in the absence of any magnetic field and presence of large Rashba spin-splitting, which is essential for spin-manipulation in TIs.…”
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Journal Article -
17
Theoretical studies and model calculations of femtosecond stimulated Raman spectroscopy
Published 2012“…It's showed that eight terms contribute to the FSRS, and we grouped them in four groups, which correspond to four nonlinear processes - stimulated Raman scattering (SRS(I) and SRS(II)) and inverse Raman scattering (IRS(I) and IRS(II)). The SRS(I) contributes to the Stokes band, IRS(I) contributes to anti-Stokes band of FSRS spectra, while the SRS(II) and IRS(II) form the baseline of FSRS spectra. …”
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Thesis -
18
Imaging and processing of tree trunk
Published 2020“…Ground-Penetrating Radar (GPR) is traditionally used as a tool to detect objects beneath the geographical surface. It is a non-invasive method that uses electromagnetic waves (EM waves) in the microwave band as the propagation method. …”
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Final Year Project (FYP) -
19
Effect of growth temperature on the terahertz-frequency conductivity of the epitaxial transparent conducting spinel NiCo2O4 films
Published 2014“…We have measured the terahertz-frequency optical conductivity of the epitaxial inverse spinel NiCo2O4 films grown at different temperatures. …”
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Journal Article -
20
Phase measurements based indoor visible light positioning systems
Published 2020“…This causes a confusion of phases at the receiving end with leap solutions in inverse trigonometric functions, ending up with sudden phase changes. …”
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Thesis-Doctor of Philosophy