<p>The enhancement of the emission from nitrogen vacancy color
centers will help facilitate advancements in quantum information technology. To
this end, the reduction of the excited state lifetimes of NVs as well as the
design of devices which support electroluminescence of nitrogen vacancies, as
well as the broadband enhancement of the emission from these centers is of
great importance.</p>
<p> </p>
<p>In this study, we create diamond thin films containing
nitrogen vacancy color centers using salt-assisted ultrasonic disaggregation
techniques and electrophoretic deposition. These films are implanted with xenon
atoms and the resulting structures are characterized optically. We report a
reduction in the bulk emission lifetime of nitrogen vacancy color centers of
two orders of magnitude. A coupled-mode theory approach is used to analyze the
emission from the xenon-doped nanodiamond species. It is determined that the
lifetime reduction occurs due to coupling between nitrogen vacancy color
centers and xenon color centers within the diamond lattice.</p>
<p> </p>
<p>A diamond field effect transistor is investigated via
simulations utilizing Sentaurus TCAD software. The device is scaled by three
orders of magnitude from previous experiments involving the same structure.
Transport characteristics are obtained from simulation results. We confirm the
existence of a decreasing saturation voltage with a decrease in gate length in
the diamond field effect transistor. Further investigation into the device’s
viability as a quantum emitter is conducted. </p>
<p> </p>
<p>The design of a single photon source utilizing plasmonic
structures to enhance emission from nitrogen vacancy color centers is proposed.
The plasmonic structure is investigated to extract operating parameters and to
quantify the optical coupling and propagation characteristics for various
physical dimensions</p>
<p> </p>
The design of a plasmonic device which features
both electroluminescence via nitrogen vacancy color centers and their
enhancement via plasmonic effects is numerically simulated. The device features
large Purcell enhancement factor and good photon emission rate. In summary,
this work paves the way towards the advancement of the nitrogen vacancy color center
as a stable source of room temperature photons for quantum information
applications.
| Identifer | oai:union.ndltd.org:purdue.edu/oai:figshare.com:article/17014040 |
| Date | 15 November 2021 |
| Creators | Oluseye Akomolede (11706230) |
| Source Sets | Purdue University |
| Detected Language | English |
| Type | Text, Thesis |
| Rights | CC BY 4.0 |
| Relation | https://figshare.com/articles/thesis/COMPUTATIONAL_DESIGN_AND_EXPERIMENTAL_VALIDATION_OF_DIAMOND-BASED_QUANTUM_EMITTERS/17014040 |
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