Publications related to Optical aberration

Development of MEMS Programmable Diffraction Gratings for Spectroscopic Applications in the Visible, Near- and Mid-Infrared

This work presents the development of two MEMS programmable diffraction gratings designed for spectroscopic applications in the visible, near- and mid-infrared. These devices have been developed to limit distortion of their optical surfaces at rest and thr ...

EPFL2011

Photonic Nanojet engineering: Focal point shaping with scattering phenomena of dielectric microspheres

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We experimentally engineer Nanojets produced by dielectric spheres by varying the illumination and observe the effect with a high-resolution interference microscope (HRIM). Converging and diverging spherical wavefronts and Bessel- Gauss beams are considere ...

SPIE2011

Photonic Nanojet engineering: Focal point shaping with scattering phenomena of dielectric microspheres

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We experimentally engineer Nanojets produced by dielectric spheres by varying the illumination and observe the effect with a high-resolution interference microscope (HRIM). Converging and diverging spherical wavefronts and Bessel- Gauss beams are considere ...

SPIE2011

Characterization of Nanoparticles Using Non-linear Correlation Spectroscopy

Theo Lasser, Marcel Leutenegger, Iwan Märki, Jean-Pierre Wolf, Noelia Laura Bocchio, Luigi Bonacina

Nanoparticles are interesting for biomedical imaging as novel non- fluorescent non-bleaching labels. We present the characterization of freely diffusing nanoparticles using third harmonic generation correlation spectroscopy by illumination with a focussed ...

2011

Analytical ultracentrifugation to support the development of biomaterials and biomedical devices

Jeffrey Alan Hubbell, Jutta Christine Wandrey, Conlin O'Neil, Urara Hasegawa

Analytical ultracentrifugation (AUC) primarily serves to investigate hydrodynamic and thermodynamic properties of natural and synthetic macromolecules and colloids in solution, dispersion or suspension. Beside such more conventional use, AUC can support ma ...

2011

Microcolumn with variable axis lens for large scan fields and pixel numbers

Nico de Rooij, Sebastian Gautsch

A microcolumn is presented containing a variable axis lens optimized for large scan fields and pixel numbers with minimal probe sizes for the deflected beam. At beam energy of 1 keV and a working distance of 38 mm the magnifying column can address scan fie ...

Elsevier2011

Scanning Near-Field Optical Microscopy of Living Cells in Liquid, Elaboration of New SNOM Probes and Detection Methods

Kanat Dukenbayev

The aim of the present PhD thesis is the elaboration of new, home-made Scanning Near-field Optical Microscope (SNOM or NSOM), and the demonstration of its great potential for high-resolution topography and fluorescence investigations of soft and solid samp ...

EPFL2011

Optics, morphology, and growth kinetics of GaAs/Al_{x}Ga_{1-x}As quantum wells grown on vicinal substrates by metalorganic vapor phase epitaxy

Elyahou Kapon, Alok Rudra, Daniel Oberli, Nicolas Moret

The effect of the miscut angle of vicinal substrate on the optical and morphological properties of GaAs/AlxGa1-xAs quantum wells grown by metalorganic vapor phase epitaxy is studied by means of photoluminescence (PL) and atomic force microscopy. Within sma ...

2011

Optical Imaging Using Binary Sensors

Michaël Unser, François Aguet, Aurélien Bourquard

This paper addresses the problem of reconstructing an image from 1-bit-quantized measurements, considering a simple but nonconventional optical acquisition model. Following a compressed-sensing design, a known pseudo-random phase-shifting mask is introduce ...

OSA2010

Experimental demonstration of ray-optical refraction with confocal lenslet arrays

Toralf Scharf

We observe imaging through windows comprising pairs of confocal lenslet arrays that have different focal lengths but that are otherwise identical. Image space is stretched in the longitudinal direction only. Such windows are examples of METATOYs, optical c ...

Optical Society of America2010

Optical aberration

Development of MEMS Programmable Diffraction Gratings for Spectroscopic Applications in the Visible, Near- and Mid-Infrared

Photonic Nanojet engineering: Focal point shaping with scattering phenomena of dielectric microspheres

Photonic Nanojet engineering: Focal point shaping with scattering phenomena of dielectric microspheres

Characterization of Nanoparticles Using Non-linear Correlation Spectroscopy

Analytical ultracentrifugation to support the development of biomaterials and biomedical devices

Microcolumn with variable axis lens for large scan fields and pixel numbers

Scanning Near-Field Optical Microscopy of Living Cells in Liquid, Elaboration of New SNOM Probes and Detection Methods

Optics, morphology, and growth kinetics of GaAs/Al_{x}Ga_{1-x}As quantum wells grown on vicinal substrates by metalorganic vapor phase epitaxy

Optical Imaging Using Binary Sensors

Experimental demonstration of ray-optical refraction with confocal lenslet arrays

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Photonic Nanojet engineering: Focal point shaping with scattering phenomena of dielectric microspheres

Photonic Nanojet engineering: Focal point shaping with scattering phenomena of dielectric microspheres

Microcolumn with variable axis lens for large scan fields and pixel numbers

Experimental demonstration of ray-optical refraction with confocal lenslet arrays

Optical Imaging Using Binary Sensors

Characterization of Nanoparticles Using Non-linear Correlation Spectroscopy

Optics, morphology, and growth kinetics of GaAs/Al_{x}Ga_{1-x}As quantum wells grown on vicinal substrates by metalorganic vapor phase epitaxy

Development of MEMS Programmable Diffraction Gratings for Spectroscopic Applications in the Visible, Near- and Mid-Infrared

Scanning Near-Field Optical Microscopy of Living Cells in Liquid, Elaboration of New SNOM Probes and Detection Methods

Analytical ultracentrifugation to support the development of biomaterials and biomedical devices