We demonstrate a method for creating three-dimensional (3D) array of focal spots by combination multi-focal diffractive lens and two-dimensional multi-value phase grating. The Fresnel-based is created means encoding special nonlinearities into the structure Fresnel zone plate represented as mathematical superposition this function with refractive lens. imposed nonlinearity type enables creation multiple uniform intensity along optical axis. example 3D grating, which creates five planes $5...

We present composite spiral multi-value phase zone plates that are achieved by sectioning a plate into several radial regions. Each region is composed of specially structured Fresnel zones with optimized values and an embedded basic topological charge. In numerical studies, it shown the proposed element capable producing equal intensity arrays petal-like modes as well dark optical ring lattice structures along axis in multiple focal planes diffractive element. Additionally, demonstrated...

In this work, we show how the combination of cascaded multi-value phase diffractive optical elements can form a multi-focal moiré zone plate with tunable power in each diffraction order. The rotationally is capable generating an array equal intensity focal spots precisely adjustable axial distance along propagation direction. Numerical simulations as well experimental results verify that multiple are generated, and between generated uniform foci be adjusted by mutual rotation one element...

Five light sheets of equal intensity are generated within the tube a flow driven Light Sheet Fluorescence Microscope (LSFM). In combination with second multi-focal lens multiplane imaging on single chip is provided.

Typically, spatial light modulator (SLM)-based microscopy is implemented using a carrier frequency in order to avoid disturbances due the non-ideal modulation behavior of most SLMs. However, combination with polychromatic light, this leads strong chromatic aberrations dispersion at grating formed by frequency. In contribution, we introduce method based on evaluation multiple images obtained different orientations. This way, and limitation concerning object field can be strongly reduced.

A method is proposed for creating a coaxial array of petal-like modes by using multi focal composite spiral zone plate. The diffractive element superimposes two oppositely charged optical vortices to generate desired number equal intensity beams.

Light sheet fluorescence microscope with single light illumination enables rapid 3D imaging of living cells. In this paper we show the design, fabrication and characterization a diffractive optical element producing several sheets along 45° inclined tube. The element, which is based on multi-focal lens linear grating, generates five thin equal intensities when combined refractive cylindrical lens. generated uniform can be applied for scanning samples in tubes enabling flow-driven...

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 a diffractive optical element producing several light sheets along an inclined tube for applications in flow-driven imaging. The element, which is based on multi-focal Fresnel zone plate linear grating, generates combination refractive cylindrical lens five thin equal intensity.

We describe the design of Fourier type array generators and beam shapers as periodic configurations refractive-diffractive optical elements in microscale to provide specific shaping imaging functionaliies. investigate how addition micro-nanostructures regular microstructure arrays enables new degrees freedom for micro-optical systems, combination with adapted fabrication techniques yields a better performance leads enhancement concept, uniformity efficiency.

A specific combination of diffractive optical elements can form a tunable multi-focal lens generating an array adjustable coaxial focal spots with uniform intensity distribution. The mutual rotation the two cascaded grids provides continuous adjustment power based on Alvarez-Lohmann approach and dynamic tuning foci distances.