Miniaturized low-cost digital holographic interferometer

Aneta Michalkiewicz; Małgorzata Kujawinska; Paweł Marc; Leszek R. Jaroszewicz

doi:10.1117/12.663414

27 April 2006 Miniaturized low-cost digital holographic interferometer

Aneta Michalkiewicz, Małgorzata Kujawinska, Paweł Marc, Leszek R. Jaroszewicz

Proceedings Volume 6188, Optical Micro- and Nanometrology in Microsystems Technology; 618806 (2006) https://doi.org/10.1117/12.663414
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

Digital holography (DH) and digital holographic interferometry (DHI) are very useful, robust, full-field visualization and measurement techniques applied for small objects, especially in the field of bioengineering and microelements system testing. Nowadays CCD/CMOS detectors and microlasers allow to build miniaturized and compact digital holographic head. Various approaches to develop DH/DHI systems including a variety of optical and mechanical solutions have been made. The main recent requirements for holocamera design include compactness, insensitivity to vibrations environmental changes and with good quality of output data. Other requirement is the ability to build a low-cost and robust system for sensing applications. In our paper, we propose a design of miniaturized holo-camera head with fibre optics light delivery system and remote data read-out. The opto-mechanical architecture allows out-of-plane and shape measurements of diffuse and reflective surfaces. The possible data capture schemes and software for enhanced quality numerical reconstruction of complex objects are discussed and the optimized methodology is determined. Also real-time optoelectronic hologram reconstruction is demonstrated on the base of remote data delivery to liquid crystal on silicon spatial light modulator. The performance of the system is tested on the resolution amplitude test and master sphere, while engineering objects in the experiments are static and dynamic microelements.

Citation Download Citation

Aneta Michalkiewicz, Małgorzata Kujawinska, Paweł Marc, and Leszek R. Jaroszewicz "Miniaturized low-cost digital holographic interferometer", Proc. SPIE 6188, Optical Micro- and Nanometrology in Microsystems Technology, 618806 (27 April 2006); https://doi.org/10.1117/12.663414

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