Compact holographic optical element-based electronic speckle pattern interferometer for rotation and vibration measurements

• Main Authors: Bavigadda, Viswanath, Moothanchery, Mohesh, Pramanik, Manojit, Mihaylova, Emilia, Toal, Vincent
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2017
• Subjects: Holographic optical elements; ESPI
• Online Access: https://hdl.handle.net/10356/80209; http://hdl.handle.net/10220/42117
• Institution: Nanyang Technological University

An out-of-plane sensitive electronic speckle pattern interferometer (ESPI) using holographic optical elements (HOEs) for studying rotations and vibrations is presented. Phase stepping is implemented by modulating the wavelength of the laser diode in a path length imbalanced interferometer. The time...