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http://dx.doi.org/10.3807/KJOP.2010.21.3.091

Study on the Two-wavelength Digital Holography Using Double Fourier Transform  

Shin, Sang-Hoon (AP & Tec)
Jung, Won-Ki (School of Electrical Engineering, Jeonju University)
Yu, Young-Hun (Department of Physics, Cheju National University)
Publication Information
Korean Journal of Optics and Photonics / v.21, no.3, 2010 , pp. 91-96 More about this Journal
Abstract
The size of a reconstructed image depends on the reconstruction distance and wavelength. The double fourier transform method is proposed to eliminate the dependence on the reconstruction distance and wavelength. We can get a fixed reconstructed image size by using the double fourier transform method. Two wavelength digital holography is proposed to measure the step height, which is larger than a single wavelength. The two image size of different wavelength holograms should be the same in order to apply two wavelength digital holography. We use two wavelength digital holography and double fourier transforms to measure the step height. The measured data were reasonable and we found that the double fourier transform is useful in two wavelength digital holography.
Keywords
Holography; Digital holography; Double fourier transform;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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