Phyllotaxis-inspired nanosieves with multiplexed orbital angular momentum

Z **, D Janoschka, J Deng, L Ge, P Dreher, B Frank… - ELight, 2021 - Springer
Nanophotonic platforms such as metasurfaces, achieving arbitrary phase profiles within
ultrathin thickness, emerge as miniaturized, ultracompact and kaleidoscopic optical vortex …

Automated imaging, identification, and counting of similar cells from digital hologram reconstructions

M Mihailescu, M Scarlat, A Gheorghiu, J Costescu… - Applied …, 2011 - opg.optica.org
This paper presents our method, which simultaneously combines automatic imaging,
identification, and counting with the acquisition of morphological information for at least …

On-site holographic interference method for fast surface topology measurements and reconstruction

L Ionel, D Ursescu, L Neagu, M Zamfirescu - Physica Scripta, 2015 - iopscience.iop.org
Based on holographic interferometry technique, we develop a quantitative method for on-
site characterization of surface topology and 3D reconstruction. The optical set-up with 2D …

Diffraction pattern study for cell type identification

M Mihailescu, J Costescu - Optics express, 2012 - opg.optica.org
This paper presents our study regarding diffracted intensity distribution in Fresnel and
Fraunhofer approximation from different cell types. Starting from experimental information …

[PDF][PDF] Discriminating the main representatives of the white blood cell species on the basis of the fractal properties of the DHM phase profile

I Eugen, M Mihailescu, I Paun, M Scarlat - 2013 - scientificbulletin.upb.ro
In order to identify the signatures of the white blood cell (WBC) species, the present study
address on discriminating the main WBC representatives based on their fractal properties as …

Microchannel-pinhole parameters investigation for cells visualization in holographic microscopy

M Mihailescu, EI Scarlat… - CAS 2011 Proceedings …, 2011 - ieeexplore.ieee.org
Here we propose a compact system built around a microchannel aiming to analyze
individual blood cells (BCs), using digital in-line holographic microscopy (DIHM). Under the …

Independent and combined information transfer from axicon and helical phase distributions

M Mihailescu, L Preda, C Kusko - Applied Optics, 2014 - opg.optica.org
Helical phase distributions used for optical information transfer increase its capacity by
offering a characteristic spatial intensity arrangement for the diffracted beam. Here we …

Numerical analysis of spatial distortions in a single-grating chirped pulse amplification system

LE Ionel - Optik, 2014 - Elsevier
A numerical study of spatial distortions of a laser beam after propagation through an optical
single-grating chirp pulse amplification (CPA) system was developed. This study is based on …

[PDF][PDF] SPATIO-TEMPORAL ANALYSIS OF NON-COLLINEAR FEMTOSECOND PULSES COMBINATION

L Ionel - UNIVERSITY POLITEHNICA OF BUCHAREST …, 2019 - scientificbulletin.upb.ro
Non-collinear coherent combining (NCCC) of ultrashort pulses is investigated in the
presence of symmetrical variation of the angle (α) made by the laser beams propagation …

[PDF][PDF] Numerical analysis of spatial distortions effect on femtosecond laser interference patterning

L Ionel - Rom. J. Phys, 2015 - rjp.nipne.ro
A numerical method is presented to study the laser beam distortions and their influence on
the interference patterning after propagation through an optical chirp pulse amplification …