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year 28, Issue 2 (ICOP & ICPET 2022 2022)
ICOP & ICPET _ INPC _ ICOFS 2022, 28(2): 30-33 |
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Panahi M, Darudi A. Thickness Measurement of the Glass Plate by In-Line Digital Holography. ICOP & ICPET _ INPC _ ICOFS 2022; 28 (2) :30-33
URL: http://opsi.ir/article-1-2574-en.html
URL: http://opsi.ir/article-1-2574-en.html
Abstract: (528 Views)
Holography is a method to record and reconstruct the amplitude and the phase of a wavefront concurrently and is ideally suited for accurate and efficient determination of the wavefront profile. In-line digital holography is a valuable tool for various measurements due to its simple configuration. In this paper, the thickness of a glass plate is measured using the in-line digital holography. We show that defocus aberration, created by the placement of a glass plate in the path of the wavefront, can be used to measure the thickness of the glass plate with high accuracy. Also, the thickness deviation is measured by the refractive index.
Type of Study: Experimental |
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