Comparison of three electronic speckle pattern shearing interferometers using photopolymer holographic optical elements

Emilia Mihaylova, Izabela Naydenova, Suzanne Martin, Vincent Toal

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    Three electronic speckle pattern shearing interferometers (ESPSI) using photopolymer holographic gratings to produce the sheared image are presented. In the first ESPSI system two holographic gratings are used. The gratings are placed between the object and an imaging lens in front of the CCD camera. In the second ESPSI system one grating is used in combination with a sheet of ground glass. The sheared images on the ground glass are further imaged onto a CCD camera. In the third ESPSI system only one grating is used - it is placed in front of the object. The image and the sheared image are imaged onto the CCD camera, whose optical axis coincides with the normal to the object surface. The introduction of photopolymer holographic gratings in ESPSI systems gives the advantage of using high aperture optical elements at relatively low price. The systems are compared in terms of flexibility in their adjustment, sensitivity, suitability and limitations for different applications.

    Original languageEnglish
    Title of host publicationHolography 2005
    Subtitle of host publicationInternational Conference on Holography, Optical Recording, and Processing of Information
    DOIs
    Publication statusPublished - 2006
    EventHolography 2005: International Conference on Holography, Optical Recording, and Processing of Information - Varna, Bulgaria
    Duration: 21 May 200525 May 2005

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume6252
    ISSN (Print)0277-786X

    Conference

    ConferenceHolography 2005: International Conference on Holography, Optical Recording, and Processing of Information
    Country/TerritoryBulgaria
    CityVarna
    Period21/05/0525/05/05

    Keywords

    • ESPSI
    • HOE
    • Holographic grating
    • Shearing interferometry

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