HOLOGRAPHY • Dr. Susanne Martin | DIT Grangegorman скачать в хорошем качестве

HOLOGRAPHY • Dr. Susanne Martin | DIT Grangegorman

This presentation will overview research in the area of Holography at the Centre for Industrial and Engineering Optics at DIT. A brief introduction to the topic of holography will be given, which builds on interference and diffraction topics from the Leaving Certificate Physics curriculum. The presentation will show how holographic gratings are produced in the laboratory by recording interference patterns in photosensitive materials. These gratings are routinely used for materials characterization and this presentation will briefly show how the microscopic and macroscopic characteristics of these simple holograms change with recording parameters such as laser wavelength, exposure time, angle between the interfering beams etc. Since more complex holograms are needed to produce 3D holographic images of real objects the presentation will also cover the techniques for recording reflection and transmission holograms of real objects. Finally, some the applications of holography are explored showing how holograms can be used in sensing applications, as security devices, in measurement systems and in the shaping and direction of light beams. BIOGRAPHY Dr Suzanne Martin is the manager of the IEO Centre and is the Principal Investigator for research projects in holographic materials and devices. She is author of 29 articles in peer reviewed journals as well as posters and conference presentations in the area of holographic materials and devices. She has been co-inventor of a number of new technologies developed in IEO for which three patents have been granted to date. Dr Martin is a co-inventor and co-founder of Optrace Ltd., which is a DIT spin-out company underpinned by research conducted by the IEO team and led by Dr Izabela Naydenova. Optrace produces holographic labels that can enhance security and branding on all types of packaging or labelling. Each label is as “unique as a fingerprint” and Optrace Ltd is the only producer able to manufacture these using a patented process and secret know how. FRONTIERS OF PHYSICS TEACHERS’ CONFERENCE Dublin Institute of Technology 24 September 2016 Camera : Marek Bogacki Produced by DOCUMENTAVI MMXVI