Ahmad Faridian

Recent advances in digital holography [Invited]

This article presents an overview of recent advances in the field of digital holography, ranging from holographic techniques designed to increase the resolution of microscopic images, holographic imaging using incoherent illumination, phase retrieval with incoherent illumination, imaging of occluded objects, and the holographic recording of depth-extended objects using a frequency-comb laser, to the design of an infrastructure for remote laboratories for digital-holographic microscopy and metrology. The paper refers to current trends in digital holography and explains them using new results that were recently achieved at the Institute for Applied Optics of the University Stuttgart.

Nanoscale imaging using deep ultraviolet digital holographic microscopy

A deep ultraviolet off-axis digital holographic microscope (DHM) is presented. The microscope has been arranged with as least as possible optical elements in the imaging path to avoid aberration due to the non-perfect optical elements. A high resolution approach has been implemented in the setup using oblique illumination to overcome the limitation introduced by the optical system. To examine the resolution of the system a nano-structured template has been designed and the result confirms the submicron and nanoscale resolution of the arranged DHM setup.

Optical investigations of the normal and superconducting states reveal two electronic subsystems in iron pnictides

D. Wu, N. Barǐsić, P. Kallina, A. Faridian, B. Gorshunov, N. Drichko, L. J. Li, X. Lin, G. H. Cao, Z. A. Xu, N. L. Wang, and M. Dressel 1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany Department of Physics, Zhejiang University, Hangzhou 310027, People’s Republic of China 3 Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China (Dated: December 18, 2009)

Effects of magnetic ordering on dynamical conductivity: Optical investigations of EuFe2As2 single crystals

The magnetic, transport and optical properties of EuFe

Digital holography of self-luminous objects by using a Mach-Zehnder setup.

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Single beam Fourier transform digital holographic quantitative phase microscopy

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High-contrast multilayer imaging of biological organisms through dark-field digital refocusing

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Phase-sensitive structured illumination to detect nanosized asymmetries in silicon trenches

single crystals have been investigated parallel and perpendicular to the

High-resolution quantitative phase microscopic imaging in deep UV with phase retrieval.

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Opposed-view dark-field digital holographic microscopy

-plane. The anisotropy