Near-field diffraction of chirped gratings



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Sánchez Brea, Luis Miguel and Torcal Milla, Francisco José and Morlanes Calvo, Tomás (2016) Near-field diffraction of chirped gratings. Optics letters, 41 (17). pp. 4091-4094. ISSN 0146-9592

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In this Letter, we analyze the near-field diffraction pattern produced by chirped gratings. An intuitive analytical interpretation of the generated diffraction orders is proposed. Several interesting properties of the near-field diffraction pattern can be determined, such as the period of the fringes and its visibility. Diffraction orders present different widths and also, some of them present focusing properties. The width, location, and depth of focus of the converging diffraction orders are also determined. The analytical expressions are compared to numerical simulation and experimental results, showing a high agreement.

Item Type:Article
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© 2016 Optical Society of America.
Universidad Complutense de Madrid (UCM) (art. 83 LOU num. 52-2016).

Uncontrolled Keywords:Diffraction; Diffraction gratings; Talbot and self-imaging effects; Gratings; Chirping
Subjects:Sciences > Physics > Optics
ID Code:39230
Deposited On:30 Sep 2016 17:13
Last Modified:01 Jan 2017 00:01

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