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An important area of application of holographic optical elements (HOEs) is in optical and electronic speckle pattern interferometry. The design, fabrication and characterization of holographic optical elements (HOEs) for electronic speckle pattern interferometry are presented. Reflection HOEs (RHOEs) were fabricated for use in electronic speckle pattern interferometers (ESPI) and laser Doppler vibrometers (LDV). The HOE-based interferometer is sensitive to out-of-plane displacements only. The results obtained are promising for future applications of the system for modal analysis.
Bavigadda, V., Mihaylova, E., Jallapuram, R., Toal, V.: Design and Fabrication of Holographic Optical Elements for Applications in Electronic Speckle Pattern Interferometry and Laser Doppler Vibrometry. Proceedings Vol. 7098 Eighth International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, Enrico Primo Tomasini, Editors, 70980O. DOI: 10.1117/12.803006