2026-09-20T12:24:27Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/112980 2023-07-11 col_2142_5131 col_2142_8859 com_2142_5130 com_2142_8858 com_2142_234

2022-01-12T21:45:24Z 2021-07-02 2021-08 Kwiat, Paul G Lorenz, Virginia Madhavan, Vidya Goldschmidt, Elizabeth Meier, Kristina A. 2022-01-12T21:45:24Z As benchtop quantum information protocols become increasingly more advanced and the distances over which these experiments are performed become significantly longer, integrated optics provide a small, robust, and practical alternative to traditional bulk optics. Waveguide technology makes it possible to create bright entangled-photon sources that can be used on platforms where weight and stability requirements are limiting factors, e.g., on aerial or even space-based mobile platforms, which could allow reconfigurable long-distance transfer of photonic qubits. Specifically, for our goals, we are working on the characterization and optimization of both highly nondegenerate and degenerate Spontaneous Parametric Down-Conversion waveguide sources of collinear polarization-entangled photon pairs using various entanglement methods determined by the relevant application. Our ultimate goal is to create polarization-entangled photon pairs that are also spectrally unentangled, a necessary condition for efficient multiphoton protocols, e.g., for quantum repeaters. Additionally, highly nondegenerate polarization-entangled photon pairs can be manipulated to create frequency-entangled pairs for ultra-high-timing-resolution interference-based quantum metrology on the attosecond-level. This metrology scheme would enable new technologies for both biomedical and defense applications. Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-01-12 without embargo terms The student, Kristina Meier, accepted the attached license on 2021-06-30 at 08:45. The student, Kristina Meier, submitted this Dissertation for approval on 2021-06-30 at 09:05. This Dissertation was approved for publication on 2021-07-02 at 16:19. DSpace SAF Submission Ingestion Package generated from Vireo submission #16733 on 2022-01-12 at 12:43:47 Made available in DSpace on 2022-01-12T21:45:24Z (GMT). No. of bitstreams: 3 MEIER-DISSERTATION-2021.pdf: 11773383 bytes, checksum: b30149407f624b853bf779d1a8a09c93 (MD5) LICENSE.txt: 4211 bytes, checksum: 09e46495c9818a97a46a7ff2480734ec (MD5) PROQUEST_LICENSE.txt: 4557 bytes, checksum: d57ea7b553b9bf65baa8be44f4a82c53 (MD5) Previous issue date: 2021-07-02 application/pdf http://hdl.handle.net/2142/112980 en Copyright 2021 Kristina A. Meier. All Rights Reserved. physics optical quantum entanglement spontaneous parametric downconversion spontaneous parametric downconversion SPDC Paul Kwiat waveguides nonlinear crystals PPKTP beam displacer Oak Ridge Periodically Poled KTP KTP polarization photons quantum teleportation teleportation quantum networking networking satellites drone Comparison, optimization, and application of various spontaneous parametric downconversion sources of polarization-entangled photon pairs text Thesis Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.