Developing and investigating a computerized interferometer based on the Ronchi setup and interferogram-broadening software

Ле Зуй Туан, Кирилловский В.К. Разработка и исследование компьютеризированного интерферометра на основе схемы Ронки и программного обеспечения для расшифровки интерферограмм // Оптический журнал. 2009. Т. 76. № 1. С. 24–27.

Tuan L.D., Kirillovskiy V.K. Developing and investigating a computerized interferometer based on the Ronchi setup and interferogram-broadening software [in Russian] // Opticheskii Zhurnal. 2009. V. 76. № 1. P. 24–27.

L. D. Tuan and V. K. Kirillovskiĭ, "Developing and investigating a computerized interferometer based on the Ronchi setup and interferogram-broadening software," Journal of Optical Technology. 76 (1), 19-22 (2009). https://doi.org/10.1364/JOT.76.000019

The goal of this paper was to modernize and computerize an interferometer with a diffraction grating based on the Ronchi setup. The advantages of the interferometer are as follows: simplicity and reliability, insensitivity to vibrations, the possibility of using a nonlaser source with white-light illumination or light with discrimination of any wavelength (with monitoring of chromatism), and the absence of an optical reference surface. For the computer processing of interferograms obtained on a diffraction interferometer with a grating, program TIGER was developed, making it possible to automatically interpret the interference fringes and to calculate the wave-front deformation and the image-quality characteristics of the optical system, such as the point-spread function, the line-spread function, and the modulation-transfer function or frequency-contrast response.