{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/108598"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/108598","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Dynamic plasma photonic crystals: multidimensional electromagnetically active artificial structures in the mm-wave and thz regimes","abstract":"Microplasma is a versatile electromagnetic material that can be formed in sub-mm cavities with high electron densities (10^14-10^17 cm^-3). The permittivity of microplasma is readily modulated through the electron and neutral gas number densities, making microplasma inherently applicable to photonic crystal (PC) applications. Photonic crystals are structures possessing periodic modulation in the refractive indices, enabling them to manipulate the flow of light, and form photonic bandgaps. As such, photonic crystals are useful in numerous applications that require the precise control of photons including, but not limited to, waveguides, microcavity lasers, sensors, communication systems, and quantum photonics. This thesis focuses on the development of hybrid microplasma structures as tunable coupled resonators and photonic crystals. An inverse molding method was developed to form three-dimensional (3D) complex microcapillary networks within a polymer scaffold. Generation of plasma within these microcapillaries formed dynamic 3D plasma photonic crystals with electronic speed tunability. Metallic gratings were interwoven with microplasma columns to form dual resonators that modified the spectral manipulation through their coupling strength. The metallic gratings were then reduced to isolated metallic scatterers, forming 3D metallo-dielectric photonic crystals possessing wide bandgaps and enhanced resonances that were tunable by microplasma. The crystal designs demonstrated in this thesis enabled controlled manipulation of the electromagnetic spectrum through adjusting the refractive index modulation as well as the crystal structure. Furthermore, the complex microcapillary network offers a versatile platform to couple different materials of different topologies. The results obtained in this thesis suggest the suitability of plasma-based photonic structures for mm-wave and THz applications and fundamental studies of multi-coupled resonators.","abstract_html":"Microplasma is a versatile electromagnetic material that can be formed in sub-mm cavities with high electron densities (10^14-10^17 cm^-3). The permittivity of microplasma is readily modulated through the electron and neutral gas number densities, making microplasma inherently applicable to photonic crystal (PC) applications. Photonic crystals are structures possessing periodic modulation in the refractive indices, enabling them to manipulate the flow of light, and form photonic bandgaps. As such, photonic crystals are useful in numerous applications that require the precise control of photons including, but not limited to, waveguides, microcavity lasers, sensors, communication systems, and quantum photonics. This thesis focuses on the development of hybrid microplasma structures as tunable coupled resonators and photonic crystals. An inverse molding method was developed to form three-dimensional (3D) complex microcapillary networks within a polymer scaffold. Generation of plasma within these microcapillaries formed dynamic 3D plasma photonic crystals with electronic speed tunability. Metallic gratings were interwoven with microplasma columns to form dual resonators that modified the spectral manipulation through their coupling strength. The metallic gratings were then reduced to isolated metallic scatterers, forming 3D metallo-dielectric photonic crystals possessing wide bandgaps and enhanced resonances that were tunable by microplasma. The crystal designs demonstrated in this thesis enabled controlled manipulation of the electromagnetic spectrum through adjusting the refractive index modulation as well as the crystal structure. Furthermore, the complex microcapillary network offers a versatile platform to couple different materials of different topologies. The results obtained in this thesis suggest the suitability of plasma-based photonic structures for mm-wave and THz applications and fundamental studies of multi-coupled resonators.","abstract_has_math":false,"creators":["Chen, Wenyuan"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Electrical & Computer Engr","degree_department":null,"school":null,"contributors":["Eden, J. Gary"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2020,"date_issued":"2020-10-07T22:44:32Z","date_published":"2020-10-07T22:44:32Z","updated_at":"2026-07-22T22:24:48Z","subjects":["Light Matter Interaction","Microplasma","Photonic Crystals","Dynamic Artificial Materials","Coupled Resonators","Millimeter Wave"],"languages":["en"],"rights":["Copyright 2020 Wenyuan Chen"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/108598","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Eden, J. Gary"]},{"key":"dc:creator","label":"Author","values":["Chen, Wenyuan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2020-10-07T22:44:32Z","2022-10-07T22:44:53Z","2020-07-13","2020-08"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical & Computer Engr"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Light Matter Interaction","Microplasma","Photonic Crystals","Dynamic Artificial Materials","Coupled Resonators","Millimeter Wave"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2020 Wenyuan Chen"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/108598"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Microplasma is a versatile electromagnetic material that can be formed in sub-mm cavities with high electron densities (10^14-10^17 cm^-3). The permittivity of microplasma is readily modulated through the electron and neutral gas number densities, making microplasma inherently applicable to photonic crystal (PC) applications. Photonic crystals are structures possessing periodic modulation in the refractive indices, enabling them to manipulate the flow of light, and form photonic bandgaps. As such, photonic crystals are useful in numerous applications that require the precise control of photons including, but not limited to, waveguides, microcavity lasers, sensors, communication systems, and quantum photonics. This thesis focuses on the development of hybrid microplasma structures as tunable coupled resonators and photonic crystals. An inverse molding method was developed to form three-dimensional (3D) complex microcapillary networks within a polymer scaffold. Generation of plasma within these microcapillaries formed dynamic 3D plasma photonic crystals with electronic speed tunability. Metallic gratings were interwoven with microplasma columns to form dual resonators that modified the spectral manipulation through their coupling strength. The metallic gratings were then reduced to isolated metallic scatterers, forming 3D metallo-dielectric photonic crystals possessing wide bandgaps and enhanced resonances that were tunable by microplasma. The crystal designs demonstrated in this thesis enabled controlled manipulation of the electromagnetic spectrum through adjusting the refractive index modulation as well as the crystal structure. Furthermore, the complex microcapillary network offers a versatile platform to couple different materials of different topologies. The results obtained in this thesis suggest the suitability of plasma-based photonic structures for mm-wave and THz applications and fundamental studies of multi-coupled resonators.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-08-01","The student, Wenyuan Chen, accepted the attached license on 2020-07-12 at 19:39.","The student, Wenyuan Chen, submitted this Thesis for approval on 2020-07-12 at 19:40.","This Thesis was approved for publication on 2020-07-13 at 14:18.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15578 on 2020-10-02 at 15:32:31","Made available in DSpace on 2020-10-07T22:44:32Z (GMT). No. of bitstreams: 2 CHEN-THESIS-2020.pdf: 18923183 bytes, checksum: 9e3845a68a63d2672b1c7fbe2592240a (MD5) LICENSE.txt: 4209 bytes, checksum: 3946598205d087d74411e2e662b36046 (MD5) Previous issue date: 2020-07-13","Embargo set by: Seth Robbins for item 116225 Lift date: 2022-10-07T22:44:53Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Dynamic plasma photonic crystals: multidimensional electromagnetically active artificial structures in the mm-wave and thz regimes"]}]}],"canonical_facts":{"dc:contributor":["Eden, J. Gary"],"dc:creator":["Chen, Wenyuan"],"dc:date":["2020-10-07T22:44:32Z","2022-10-07T22:44:53Z","2020-07-13","2020-08"],"dc:description":["Microplasma is a versatile electromagnetic material that can be formed in sub-mm cavities with high electron densities (10^14-10^17 cm^-3). The permittivity of microplasma is readily modulated through the electron and neutral gas number densities, making microplasma inherently applicable to photonic crystal (PC) applications. Photonic crystals are structures possessing periodic modulation in the refractive indices, enabling them to manipulate the flow of light, and form photonic bandgaps. As such, photonic crystals are useful in numerous applications that require the precise control of photons including, but not limited to, waveguides, microcavity lasers, sensors, communication systems, and quantum photonics. This thesis focuses on the development of hybrid microplasma structures as tunable coupled resonators and photonic crystals. An inverse molding method was developed to form three-dimensional (3D) complex microcapillary networks within a polymer scaffold. Generation of plasma within these microcapillaries formed dynamic 3D plasma photonic crystals with electronic speed tunability. Metallic gratings were interwoven with microplasma columns to form dual resonators that modified the spectral manipulation through their coupling strength. The metallic gratings were then reduced to isolated metallic scatterers, forming 3D metallo-dielectric photonic crystals possessing wide bandgaps and enhanced resonances that were tunable by microplasma. The crystal designs demonstrated in this thesis enabled controlled manipulation of the electromagnetic spectrum through adjusting the refractive index modulation as well as the crystal structure. Furthermore, the complex microcapillary network offers a versatile platform to couple different materials of different topologies. The results obtained in this thesis suggest the suitability of plasma-based photonic structures for mm-wave and THz applications and fundamental studies of multi-coupled resonators.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2022-08-01","The student, Wenyuan Chen, accepted the attached license on 2020-07-12 at 19:39.","The student, Wenyuan Chen, submitted this Thesis for approval on 2020-07-12 at 19:40.","This Thesis was approved for publication on 2020-07-13 at 14:18.","DSpace SAF Submission Ingestion Package generated from Vireo submission #15578 on 2020-10-02 at 15:32:31","Made available in DSpace on 2020-10-07T22:44:32Z (GMT). No. of bitstreams: 2 CHEN-THESIS-2020.pdf: 18923183 bytes, checksum: 9e3845a68a63d2672b1c7fbe2592240a (MD5) LICENSE.txt: 4209 bytes, checksum: 3946598205d087d74411e2e662b36046 (MD5) Previous issue date: 2020-07-13","Embargo set by: Seth Robbins for item 116225 Lift date: 2022-10-07T22:44:53Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system","U of I Only"],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/108598"],"dc:language":["en"],"dc:rights":["Copyright 2020 Wenyuan Chen"],"dc:subject":["Light Matter Interaction","Microplasma","Photonic Crystals","Dynamic Artificial Materials","Coupled Resonators","Millimeter Wave"],"dc:title":["Dynamic plasma photonic crystals: multidimensional electromagnetically active artificial structures in the mm-wave and thz regimes"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Electrical & Computer Engr"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:48Z"}