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http://dx.doi.org/10.3807/JOSK.2007.11.2.071

Measurement of Spatial Coherence Function of Laser Beam by using a Sagnac Interferometer  

Lee, Chang-Hyouck (Physics Department, Inha University)
Kang, Yoon-Shik (Physics Department, Inha University)
Sung, Yu-Gene (Physics Department, Inha University)
Noh, Jae-Woo (Physics Department, Inha University)
Publication Information
Journal of the Optical Society of Korea / v.11, no.2, 2007 , pp. 71-75 More about this Journal
Abstract
The spatial coherence function of a laser beam was measured by using a Sagnac interferometer and self referencing technique. For a laser beam passing through a narrow slit, the absolute value of the measured spatial coherence function becomes more symmetric as the slit size is reduced. For diverging beams, the spatial coherence function shows fast oscillations in its real and imaginary parts. We explain this by using a Gaussian Schell-model. One can use this measurement method to study and characterize the property of the light field coming out of a small sample.
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Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 3  (Related Records In Web of Science)
Times Cited By SCOPUS : 4
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