{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/19845"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/19845","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Control and detection of complex fields in spatio-temporal optical systems","abstract":"Methods for controlling and detecting complex optical fields with high spatial and temporal bandwidths are considered in this thesis. Space-time transformations can be used to encode and detect information in optical fields. Interferometric cross correlators detect temporal information by using spatial processes that can achieve higher resolution than direct temporal processes can achieve. An analysis of interferometric cross correlators is presented, and the signal-to-noise ratio that can be obtained in these systems is derived. This analysis includes the effects of positioning errors that cause uncertainties in the path delay between interfering beams. Experimental results that demonstrate the detection of complex space-time fields are presented. Holographic pulse-shaping techniques for recording information on ultra-fast space-time fields are analyzed. Spatial programming of reflection holograms in one dimension controls the temporal shape of a diffracted field. Space-time fields are produced by controlling holograms in three dimensions. Experimental holographic pulse-shaping systems are described, and the production of programmable ultrashort pulses with sub-picosecond temporal resolution and diffraction-limited spatial resolution is demonstrated. Applications of these techniques in microscopy, communications, and quantum dynamical control are also considered.","abstract_html":"Methods for controlling and detecting complex optical fields with high spatial and temporal bandwidths are considered in this thesis. Space-time transformations can be used to encode and detect information in optical fields. Interferometric cross correlators detect temporal information by using spatial processes that can achieve higher resolution than direct temporal processes can achieve. An analysis of interferometric cross correlators is presented, and the signal-to-noise ratio that can be obtained in these systems is derived. This analysis includes the effects of positioning errors that cause uncertainties in the path delay between interfering beams. Experimental results that demonstrate the detection of complex space-time fields are presented. Holographic pulse-shaping techniques for recording information on ultra-fast space-time fields are analyzed. Spatial programming of reflection holograms in one dimension controls the temporal shape of a diffracted field. Space-time fields are produced by controlling holograms in three dimensions. Experimental holographic pulse-shaping systems are described, and the production of programmable ultrashort pulses with sub-picosecond temporal resolution and diffraction-limited spatial resolution is demonstrated. Applications of these techniques in microscopy, communications, and quantum dynamical control are also considered.","abstract_has_math":false,"creators":["Hill, Kent Bradley"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Electrical and Computer Engineering","degree_department":null,"school":null,"contributors":["Brady, David J."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T12:20:27Z","date_published":"2011-05-07T12:20:27Z","updated_at":"2026-07-22T22:25:14Z","subjects":["Engineering, Electronics and Electrical","Physics, Optics"],"languages":["eng"],"rights":["Copyright 1995 Hill, Kent Bradley"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9624363","(UMI)AAI9624363"],"render_values":[{"text":"AAI9624363","href":null,"code":true},{"text":"(UMI)AAI9624363","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/19845","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Brady, David J."]},{"key":"dc:creator","label":"Author","values":["Hill, Kent Bradley"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T12:20:27Z","10000-01-01","1995"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Electrical and Computer Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"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":["Engineering, Electronics and Electrical","Physics, Optics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1995 Hill, Kent Bradley"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9624363","(UMI)AAI9624363","http://hdl.handle.net/2142/19845"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Methods for controlling and detecting complex optical fields with high spatial and temporal bandwidths are considered in this thesis. 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