Index Catalog // Arch : Northwestern University Institutional Repository

Internal and External State Preparation of a Single Molecule

Description:: The vibrational and rotational degrees of freedom in a molecule add complexity that complicate optical cycling and state preparation procedures. However, the same additional degrees of freedom also make molecules suitable candidates for tests of physics beyond the standard model. A precision measurement of the transition energy between two vibrational...
Keyword:: Photon Recoil Readout, Mixed-Species Ion Crystal, Spectroscopy, Sideband Cooling, SiO+, and Single Molecule
Subject:: Optics, Molecular physics, and Atomic physics
Creator:: Dragan, James
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/16/2023
Date Created:: 2022-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_933373 and http://dissertations.umi.com/northwestern:16290

Revealing Vibronic Coupling and Coherence in Molecular Aggregates with Multidimensional Spectroscopy: Experiment and Theory

Description:: Quantum mechanical phenomena are playing tremendous roles in many areas of chemistry and materials science research. In recent years, the potential role of coupling between electronic and vibrational degrees of freedom in photochemical processes has been widely researched. Despite its potential to improve molecular technologies, the lack of studies focusing...
Keyword:: Coherence, Quantum, Excitons, Vibronic coupling, Spectroscopy, and Photophysics
Subject:: Physical chemistry, Molecular physics, and Quantum physics
Creator:: Schultz, Jonathan David
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 09/22/2022
Date Created:: 2022-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_929572 and http://dissertations.umi.com/northwestern:16278

Effects of Inorganic Composition and Organic Ligands on Spin, Charge, and Thermal Transport Properties of Semiconductor Nanocrystals

Description:: Semiconductor nanocrystals possess unique photophysical properties that make them desirable for many optoelectronic applications such as photovoltaics, LEDs, and quantum computing. When the size of a semiconductor is reduced to below the excitonic Bohr radius of the material, its carriers becomes quantum confined resulting in drastic changes to optical, electronic,...
Keyword:: Nanocrystals, Spin, Semiconductors, Spectroscopy, Thermal properties, and Carrier Dynamics
Subject:: Physical chemistry, Chemistry, and Materials Science
Creator:: Harvey, Samantha
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/02/2022
Date Created:: 2021-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_857543 and http://dissertations.umi.com/northwestern:15830

Photophysical Impacts of Aggregation on Organic Semiconducting Polymers

Description:: Organic semiconductors have shown great promise for optoelectronic applications, particularly solar photovoltaics. Critical to their success is the ability to understand and manipulate the relationship between molecular structure and bulk properties. Substantial progress on understanding structural influences on electronic properties has been made for the conjugated polymers and small molecules...
Keyword:: Aggregation, Ultrafast Spectroscopy, PTB7, Spectroscopy, Organic Semiconductor, and Organic Photovoltaic
Subject:: Physical chemistry, Chemistry, and Condensed matter physics
Creator:: Fauvell, Thomas James
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2019-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14521 and etdadmin_upload_639550

Nonreciprocal Spin Wave Propagation and Spectroscopy in Yittrium Iron Garnet in the Presence of Metals and Spin-Orbit Coupling

Description:: Understanding how spin waves propagate through ferromagnets is an important component of a wider international effort to create spintronic devices. In this thesis, we develop a propagating spin wave spectroscopy to make a variety of measurements on thin films of Yttrium Iron Garnet (YIG), a material known for having long...
Keyword:: Magnetism, Spin Waves, Spectroscopy, and Spin-Orbit Coupling
Subject:: Physics
Creator:: Trossman, Jonathan Scott
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2018-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14430 and etdadmin_upload_624031

On Phase and the chi(3) Effect in Second-Order Nonlinear Spectroscopy

Description:: The physical boundary layer, or interface, between two different phases of matter is the site of chemical and physical processes that are critical to many research fields. Many of these interfaces contain electric charge, which influences the structure and composition of the interfacial region and the interactions between the interface...
Keyword:: Second harmonic generation, Mineral, Sum frequency generation, Spectroscopy, Interface, and Water
Subject:: Physical chemistry and Chemistry
Creator:: Ohno, Paul Erich
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/12/2020
Date Created:: 2019-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:14749 and etdadmin_upload_675952

Understanding Supported Copper Oxide Catalysts for Cyclohexane Oxidative Dehydrogenation

Description:: Supported metal oxides are an important class of heterogeneous catalysts active for many selective oxidation reactions including alkane oxidative dehydrogenation. Attempts to develop fundamental structure-function relationships for supported metal oxide catalysts for alkane oxidative dehydrogenation have been challenging, with many conflicting reports in literature. This has been in part due...
Keyword:: Copper, Supported Catalyst, Kinetics, Oxidative Dehydrogenation, Spectroscopy, and Heterogeneous Catalysis
Subject:: Chemical and Biological Engineering
Creator:: Scott Nauert
Owner:: Scholarly Digital Publishing
Date Uploaded:: 11/24/2019
Date Modified:: 11/24/2019
Date Created:: 2018-01-01
Resource Type:: Dissertation

Investigating the Surface Morphology and Stability of Heterogeneous Catalysts Synthesized by Atomic Layer Deposition

Description:: Heterogeneous catalysts play a prominent role in our society, used in applications that range from the production of plastics to the catalytic cracking of crude oil. Industrial catalysts are typically made of mixed metal oxides or nanosized metal particles deposited on high surface area supports. Industrially relevant catalytic materials are...
Keyword:: Atomic Layer Deposition, Catalysis, Spectroscopy, and Catalyst Design
Subject:: Chemistry
Creator:: Cassandra Marie George
Owner:: Scholarly Digital Publishing
Date Uploaded:: 04/18/2018
Date Modified:: 01/28/2019
Date Created:: 2017-01-01
Resource Type:: Dissertation

Ultra–Broadband Two–Dimensional Electronic Spectroscopy and Pump–Probe Microscopy of Molecular Systems

Description:: Ultrafast spectroscopy offers an unprecedented view on the dynamic nature of chemical reactions. From charge transfer in semiconductors to folding and isomerization of proteins, these all important processes can now be monitored and in some instances even controlled on real, physical timescales. One of the biggest challenges of ultrafast science...
Keyword:: Microscopy, Perovskite, Spectroscopy, Compressed Sensing, and Interferometry
Subject:: Chemistry
Creator:: Boris Spokoyny
Owner:: Scholarly Digital Publishing
Date Uploaded:: 04/18/2018
Date Modified:: 04/18/2018
Date Created:: 2017-01-01
Resource Type:: Dissertation

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Internal and External State Preparation of a Single Molecule

Revealing Vibronic Coupling and Coherence in Molecular Aggregates with Multidimensional Spectroscopy: Experiment and Theory

Effects of Inorganic Composition and Organic Ligands on Spin, Charge, and Thermal Transport Properties of Semiconductor Nanocrystals

Photophysical Impacts of Aggregation on Organic Semiconducting Polymers

Nonreciprocal Spin Wave Propagation and Spectroscopy in Yittrium Iron Garnet in the Presence of Metals and Spin-Orbit Coupling

On Phase and the chi(3) Effect in Second-Order Nonlinear Spectroscopy

Understanding Supported Copper Oxide Catalysts for Cyclohexane Oxidative Dehydrogenation

Investigating the Surface Morphology and Stability of Heterogeneous Catalysts Synthesized by Atomic Layer Deposition

Ultra–Broadband Two–Dimensional Electronic Spectroscopy and Pump–Probe Microscopy of Molecular Systems

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