Spectral resolution of optical filters based on diffractive optical elements with non-uniform illumination [PDF]
We study the transmission coefficient and the spectral resolution of optical filters based on a diffractive optical element (DOE), with a collimating lens, input and output fibers.
Angelskår Hallvard, Sudbø Aasmund S.
doaj +3 more sources
Linearly modulated multi-focal diffractive lens for multi-sheet excitation of flow-driven samples in a light-sheet fluorescence microscope [PDF]
Light-sheet fluorescence microscopy (LSFM) with single light-sheet illumination enables rapid 3Dimaging of living cells. In this paper we show the design, fabrication and characterization of a diffractive optical element producing several light sheets ...
Hofmann Meike +5 more
doaj +3 more sources
Tapered optical fibre sensors employing nanostructured coatings [PDF]
Tapered optical fibres have been manufactured, characterised and studied. These are compact devices made from single-mode optical fibre. A system for producing tapers has been developed, employing flame heating of the optical fibre and computer ...
Jarzebinska, Renata
core +7 more sources
We propose a new approach to generating a pair of initial beams for a polarization converter that operates by summing up two opposite-sign circularly polarized beams.
S. V. Karpeev +4 more
doaj +3 more sources
Comparison of far field characterisation of DOEs with a goniometric DUV-scatterometer and a CCD-based system [PDF]
We have measured far field diffraction patterns of different diffractive optical elements at an illumination wavelength of 193 nm using a new type of goniometric DUV (deep ultraviolet) scatterometer.
Wurm Matthias +3 more
doaj +1 more source
Multi-wavelength optical pickup with diffractive optical elements
S.2437-2453A novel, to our knowledge, multi-wavelength diffractive optical pickup is presented. The pickup enables multi-focus imaging and increases the data transfer rate considerably. Parallel reading of two or more memory layers is possible.
Pawlowski, E. +5 more
core +1 more source
High Concentration Photovoltaics (HCPV) with Diffractive Secondary Optical Elements
Multi-junction solar cells can be economically viable for terrestrial applications when operated under concentrated illuminations. The optimal design of concentrator optics in high concentration photovoltaics (HCPV) systems is crucial for achieving high ...
Furkan E. Sahin, Musa Yılmaz
doaj +1 more source
Nanooptical elements for visual verification
This paper focuses on the development of flat diffractive optical elements (DOEs) for protecting banknotes, documents, plastic cards, and securities against counterfeiting.
Alexander Goncharsky +3 more
doaj +1 more source
Selective modification of dual phase steel DP 1000 by laser action using diffractive optical element [PDF]
Experimental studies of shaping a CO2 laser beam with a reflective diffractive optical element have been performed. To increase the aperture of the initial beam, we used a collimator containing a system of two plane-convex spherical ZnSe lenses.
Serguei Murzin, Maksim Blokhin
doaj +1 more source
Modern Types of Axicons: New Functions and Applications
Axicon is a versatile optical element for forming a zero-order Bessel beam, including high-power laser radiation schemes. Nevertheless, it has drawbacks such as the produced beam’s parameters being dependent on a particular element, the output beam’s ...
Svetlana N. Khonina +3 more
doaj +1 more source

