Development and validation of digital microholo interferometric system for micromechanical testing

Lei Xu; Xiaoyuan Peng; Jianmin Miao; Anand Krishna Asundi

doi:10.1117/12.473541

19 June 2002 Development and validation of digital microholo interferometric system for micromechanical testing

Lei Xu, Xiaoyuan Peng, Jianmin Miao, Anand Krishna Asundi

Proceedings Volume 4778, Interferometry XI: Applications; (2002) https://doi.org/10.1117/12.473541
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

The development of a digital micro-holo interferometric system is presented in this paper. With respect to the specific requirements on the microscopic scheme in micromeasurement, application of long distance microscope is introduced with emphasis. With its corporation, the achievable microscopic resolution is studied and demonstrated by the use of the standard resolution test target. Experiments are performed to testify the capacity of the proposed system in resolving structures with lateral dimensions at the micro level. A critical issue, validation of the developed system is also addressed. Aided by finite element analysis and analytical calculation, experimental measurement with the system is addressed. Aided by finite element analysis and analytical calculation, experimental measurement with the system is examined using a hybrid approach. To evaluate the performance of the system, microbeam experiment is presented. Results measured with the system, as well as the numerical simulations are obtained. Quantitative comparisons are carried out in terms of load-induced variations of the test sample, based on which the conclusions are given.

Citation Download Citation

Lei Xu, Xiaoyuan Peng, Jianmin Miao, and Anand Krishna Asundi "Development and validation of digital microholo interferometric system for micromechanical testing", Proc. SPIE 4778, Interferometry XI: Applications, (19 June 2002); https://doi.org/10.1117/12.473541

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