An investigation of cholesteric liquid crystals as square-law detectors for recording ultrasonic holograms

dc.contributor.advisorCook, Bill D.
dc.contributor.committeeMemberAnderson, Wallace L.
dc.contributor.committeeMemberFinch, Robert D.
dc.creatorWerchan, Ronald Ellis
dc.date.accessioned2022-10-14T21:27:57Z
dc.date.available2022-10-14T21:27:57Z
dc.date.copyright1972
dc.date.issued1972
dc.description.abstractCholesteric liquid crystals were applied to a polyethylene membrane to form a liquid crystal ultrasonic detector (LCUD). The LCUD was used to thermally map ultrasonic fields and to record ultrasonic holograms. An analysis of the thermal response of the membrane to a sinusoidal heating function was performed to determine the resolution of the LCUD when used to map interference patterns. An investigation was made of the hologram transmittance as a function of ultrasonic intensity and experimentally verified.
dc.description.departmentMechanical Engineering, Department of
dc.format.digitalOriginreformatted digital
dc.format.mimetypeapplication/pdf
dc.identifier.other13869060
dc.identifier.urihttps://hdl.handle.net/10657/12324
dc.language.isoen
dc.rightsThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.
dc.titleAn investigation of cholesteric liquid crystals as square-law detectors for recording ultrasonic holograms
dc.type.dcmiText
dc.type.genreThesis
dcterms.accessRightsThe full text of this item is not available at this time because it contains documents that are presumed to be under copyright and are accessible only to users who have an active CougarNet ID. This item will continue to be made available through interlibrary loan.
thesis.degree.collegeCollege of Engineering
thesis.degree.departmentMechanical Engineering, Department of
thesis.degree.disciplineMechanical Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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