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Related publications (84)

Advantages of digital holographic microscopy for real-time full field absolute phase imaging

Christian Depeursinge, Tristan Colomb, Pierre Marquet, Jonas Kühn, Florian Charrière

Different interferometric techniques were developed last decade to obtain full field, quantitative, and absolute phase imaging, such as phase-shifting, Fourier phase microscopy, Hilbert phase microscopy or digital holographic microscopy (DHM). Although, th ...

SPIE2008

k-Microscopy: resolution beyond the diffraction limit

Theo Lasser, Rainer Leitgeb

We present a novel Fourier domain method for microscopic imaging - so- called k-microscopy - with lateral resolution independent of the detection numerical aperture. The concept is based on sample illumination by a lateral fringe- pattern of varying spatia ...

SPIE2008

Fourier Domain Optical Coherence Microscopy with Extended Depth of Field

Theo Lasser, Cathrin Brisken, Yann Barrandon, Marcel Leutenegger, Rainer Leitgeb, Martin Villiger, Adrian Bachmann, Joan Goulley, Lukas Steinmann

Fourier Domain Optical Coherence Tomography (FDOCT) is a high speed biomedical imaging modality which extracts the sample structure in depth. The axial resolution is given by the coherence length of the employed light source. The lateral resolution on the ...

2008

k-Microscopy: resolution beyond the diffraction limit

Theo Lasser, Rainer Leitgeb

We introduce a novel microscopy method of probing the spatial frequencies of a two dimensional sample with a single point detector allowing for sub- micron resolution with low NA lenses as well as for lateral phase resolution in the nanometer range. We syn ...

2008

Optimal aperture sizes and positions for EMCD experiments

Cécile Hébert

The signal-to-noise ratio (SNR) in energy-loss magnetic chiral dichroism (EMCD)-the equivalent of X-ray magnetic circular dichroism (XMCD) in the electron microscope-is optimized with respect to the detector shape, size and position. We show that an import ...

Elsevier2008

Magnifying Metamaterial Lens Design by Coordinate Transformation

Demetri Psaltis

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2008

On the complex three-dimensional amplitude point spread function of lenses and microscope objectives: theoretical aspects, simulations and measurements by digital holography

Christian Depeursinge, Tristan Colomb, Frédéric Montfort, Pierre Marquet, Jonas Kühn, Florian Charrière, Mihaela Marian

The point spread function is widely used to characterize the three-dimensional imaging capabilities of an optical system. Usually, attention is paid only to the intensity point spread function, whereas the phase point spread function is most often neglecte ...

2007

Dry etching for the correction of gap-induced blurring and improved pattern resolution in nanostencil lithography

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart

We present nanostencil lithography as a new and parallel nanopatterning technique for batch fabrication of micro/ nanoelectromechanical systems (MEMS/NEMS) with high throughput and resolution. We use nanostencil lithography for the purpose of integrating n ...

2007

A high resolution OptoFluidic microscope with optical tweezer actuation

Demetri Psaltis

In this paper, we will report our recent development of a new type of OptoFluidic Microscope (OFM) that is capable of delivering resolution beyond the diffraction limit of light. Accurate control of the sample translation is accomplished by adopting an opt ...

2007

Confining the sampling volume for Fluorescence Correlation Spectroscopy using a sub-wavelength sized aperture

Olivier Martin, Theo Lasser, Patrik Willi Hoffmann, Marcel Leutenegger

For the observation of single molecule dynamics with fluorescence fluctuation spectroscopy (FFS) very low fluorophore concentrations are necessary. For in vitro measurements, this requirement is easy to fulfill. In biology however, micromolar concentration ...

Optical Society of America2006

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