[Home ] [Archive]   [ فارسی ]  
:: Volume 24 - ::
ICOP & ICPET 2018, 24 - : 465-468 Back to browse issues page
Super-resolution by Structured Illumination in Mirau Digital Holographic Microscopy
Yasaman Ganjkhani * 1, Ehsan Ahadi Akhlaghi 2, Mohammad Chaharsooghi 2, Alireza Moradi 2
1- Department of Physics‎, ‎Institute for Advanced Studies in Basic Sciences (IASBS)‎, 45137-66731, Zanjan ‎, ‎Iran
2- Optics Research Center, Institute for Advanced Studies in Basic Sciences (IASBS)‎, 45137-66731, ‎Zanjan‎, ‎Iran
Abstract:   (188 Views)
In this paper we apply structured illumination in Mirau digital holographic microscopy to improve the lateral resolution. Digital holographic microscopy (DHM) is an effective and non-contact technique for 3D imaging of phase objects. Among different DHM setups, Mirau DHM due to its simple and vibration-immune nature is of a high interest. Mirau objectives with high NA are expensive and low NA ones suffer from low lateral resolution. It has been shown that by imaging 1D gratings on the sample we can obtain super-resolution in DHM in 1 direction and to have super-resolution in all directions the gratings should be rotated. We demonstrate that by projecting 2D gratings, instead, super-resolved 3D images in all directions may be obtained. We apply the technique to resolve microparticles within aggregations of them which can never be resolved under uniform illumination of the Mirau DHM setup.  The resolution power of the system was improved from 1.3 to 0.84 microns.
 
Keywords: Super-resolution, Digital Holographic Microscopy, Mirau, Structured Illumniation
Full-Text [PDF 869 kb]   (52 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:

Ganjkhani Y, Ahadi Akhlaghi E, Chaharsooghi M, Moradi A. Super-resolution by Structured Illumination in Mirau Digital Holographic Microscopy . ICOP & ICPET. 2018; 24 :465-468
URL: http://opsi.ir/article-1-1557-en.html


Volume 24 - 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