{"id":{"repo_id":"vu-aus","oai_identifier":"oai:eprints.vu.edu.au:15755"},"canonical_url":"https://search.dev.ndltd.org/etd/vu-aus/oai:eprints.vu.edu.au:15755","repository":{"repo_id":"vu-aus","name":"Victoria University (Australia)","base_url":"https://vuir.vu.edu.au/cgi/oai2"},"display":{"title":"Remote detection of laser generated ultrasonics by fibre optic interferometer","abstract":"This thesis is concerned with the development of a totally remote all-optic nondestructive testing and evaluation technique suitable for use in a range of adverse measuring environments. It differs from previous work in that the technique is made much more flexible and suitable for a greater range of measurement environments by the use of fibre optics. There is little problem in using optical fibres for delivery of high power Q-switched pulses to excite acoustic waves in target materials. However, the use of fibre optic interferometers in remote detection of these pulses presents very significant signal to noise problems. This thesis describes the development of a high performance fibre optic interferometer which can be used to detect small wideband ultrasonic displacement waveforms generated in laser induced ultrasonics.","abstract_html":"This thesis is concerned with the development of a totally remote all-optic nondestructive testing and evaluation technique suitable for use in a range of adverse measuring environments. It differs from previous work in that the technique is made much more flexible and suitable for a greater range of measurement environments by the use of fibre optics. There is little problem in using optical fibres for delivery of high power Q-switched pulses to excite acoustic waves in target materials. However, the use of fibre optic interferometers in remote detection of these pulses presents very significant signal to noise problems. This thesis describes the development of a high performance fibre optic interferometer which can be used to detect small wideband ultrasonic displacement waveforms generated in laser induced ultrasonics.","abstract_has_math":false,"creators":["Mitra, Biswanath"],"institution":"Victoria University of Technology","degree_name":"phd","degree_level":"doctoral","degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1997,"date_issued":"1997","date_published":"1997","updated_at":"2026-07-24T06:33:20Z","subjects":["0205 Optical Physics","School of Engineering and Science"],"languages":["en"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Mitra, Biswanath"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1997"]},{"key":"dc:date.issued","label":"Date","values":["1997"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Department of Applied Physics"]},{"key":"dc:publisher.institution","label":"Dc Publisher Institution","values":["Victoria University of Technology"]},{"key":"dc:relation.isreferencedby","label":"Dc Relation Isreferencedby","values":["https://vuir.vu.edu.au/15755/"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.qualificationlevel","label":"Dc Type Qualificationlevel","values":["doctoral"]},{"key":"dc:type.qualificationname","label":"Dc Type Qualificationname","values":["phd"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["0205 Optical Physics","School of Engineering and Science"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://vuir.vu.edu.au/15755/3/MITRA%20Biswanath-thesis_nosignature.pdf"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This thesis is concerned with the development of a totally remote all-optic nondestructive testing and evaluation technique suitable for use in a range of adverse measuring environments. It differs from previous work in that the technique is made much more flexible and suitable for a greater range of measurement environments by the use of fibre optics. There is little problem in using optical fibres for delivery of high power Q-switched pulses to excite acoustic waves in target materials. However, the use of fibre optic interferometers in remote detection of these pulses presents very significant signal to noise problems. This thesis describes the development of a high performance fibre optic interferometer which can be used to detect small wideband ultrasonic displacement waveforms generated in laser induced ultrasonics."]},{"key":"dc:format","label":"Dc Format","values":["text"]},{"key":"dc:title","label":"Title","values":["Remote detection of laser generated ultrasonics by fibre optic interferometer"]}]}],"canonical_facts":{"dc:creator":["Mitra, Biswanath"],"dc:date":["1997"],"dc:date.issued":["1997"],"dc:description.abstract":["This thesis is concerned with the development of a totally remote all-optic nondestructive testing and evaluation technique suitable for use in a range of adverse measuring environments. It differs from previous work in that the technique is made much more flexible and suitable for a greater range of measurement environments by the use of fibre optics. 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This thesis describes the development of a high performance fibre optic interferometer which can be used to detect small wideband ultrasonic displacement waveforms generated in laser induced ultrasonics."],"dc:format":["text"],"dc:identifier.uri":["https://vuir.vu.edu.au/15755/3/MITRA%20Biswanath-thesis_nosignature.pdf"],"dc:language":["en"],"dc:publisher.department":["Department of Applied Physics"],"dc:publisher.institution":["Victoria University of Technology"],"dc:relation.isreferencedby":["https://vuir.vu.edu.au/15755/"],"dc:subject":["0205 Optical Physics","School of Engineering and Science"],"dc:title":["Remote detection of laser generated ultrasonics by fibre optic interferometer"],"dc:type":["Thesis"],"dc:type.qualificationlevel":["doctoral"],"dc:type.qualificationname":["phd"]},"updated_at":"2026-07-24T06:33:20Z"}