[Home ] [Archive]   [ فارسی ]  
:: Volume 23 - ::
ICOP & ICPET 2017, 23 - : 501-504 Back to browse issues page
Theoretical investigation of the spatial second harmonic generation in the near field diffraction from the pure amplitude periodic structures at their quarter-Talbot distances
Abstract:   (925 Views)

In the passing of a plane wave through a spatial periodic structure that we call it transmission grating, the intensity pattern at distinct propagation lengths can be reproduced as it was just after the grating. This effect is known as the Talbot effect or self-imaging phenomenon. At half-way between two successive Talbot distances again self-image of the initial amplitude pattern is produced but with a lateral spatial shift. This kind of image so called as half-Talbot image and its location called as half-Talbot distance.  In addition, in half-way between a Talbot plane and the nearest half-Talbot plane we have another spatially periodic intensity pattern in which its period is equal to the half of the grating period. This kind of patterns is known as quarter-Talbot image or sub-image of the grating. Sometimes, this phenomenon is named as the spatial second harmonic generation. In this work, we will investigate by theoretical details the spatial second harmonic generation in the near filed diffraction from pure amplitude gratings at their corresponding quarter-Talbot distances and the maps of the amplitude and phase of the diffracted light beam are determined for different transmission gratings

Keywords: : Periodic structures, gratings, near field diffraction, Talbot effect, quarter-Talbot distances, spatial second harmonic generation.
Full-Text [PDF 477 kb]   (217 Downloads)    
Type of Study: Research | Subject: Special
Add your comments about this article
Your username or Email:

CAPTCHA code


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Theoretical investigation of the spatial second harmonic generation in the near field diffraction from the pure amplitude periodic structures at their quarter-Talbot distances . ICOP & ICPET. 2017; 23 :501-504
URL: http://opsi.ir/article-1-1393-en.html


Volume 23 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
Persian site map - English site map - Created in 0.05 seconds with 30 queries by YEKTAWEB 3781