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Interferometric synthetic aperture microscopy for extended focus optical coherence microscopy

Publications associées (37)

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Adaptive optics is used to abate aberrations with a wavefront correction. It is widely used in astronomy and is starting to expand into applications of laser focusing and imaging with high numerical apertures, e.g. microscopy. The physical background of fo ...

EPFL2012

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The invention relates to an optical coherence microscopy system for fast, phase resolved imaging by means of optical coherence microscopy with decoupled illumination and detection apertures, producing a dark-field effect with an enhanced optical contrast. ...

2011

On the Characteristics of Highly Confined Light Fields

Myun Sik Kim

The Investigation of highly confined light fields created by different mechanisms, such as refraction, diffraction, and scattering, are the main subject of this thesis. We distinguish a specific scattering phenomenon of dielectric microspheres from general ...

EPFL2011

Optical coherence tomography (OCT) is an interferometric imaging technique that can provide depth resolved cross-sectional views of biological tissue. OCT employs light with low temporal and yet high spatial coherence. The sample is illuminated point by po ...

EPFL2010

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To preserve the speed advantage of Fourier Domain detection in Optical Coherence Microscopy (OCM), extended depth of field is needed. With a narrow probing volume that extends over a long axial range, tissue could be measured in vivo and at cellular resolu ...

The International Society for Optical Engineering Spie-Int Soc Optical Engineering2010

Measurement of the coherent transfer function

Theo Lasser, Christophe Pache, Martin Villiger

It is important to characterize and quantify the imaging performance of optical coherence tomography (OCT) and especially optical coherence microscopy (OCM) systems for validation and calibration of the setup. We suggest using a simple rubber surface, pres ...

2010

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In this communication we introduce a low or reduced coherence interferometry technique that can be used to retrieve surface topology on samples with high roughness. Moreover, we will show that the approach enables surface topology measurement also at the i ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2010

High Resolution Interference Microscopy: 3D measurement of focused light at 405nm applied to optical disc

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

High capacity data storage on DVD and optical discs is based on focused light beams. The characterization of light fields within the focus point is a very difficult task, which requires a high-resolution method like scanning near field optical microscopy ( ...

2009

Engineering of Extended Focii for Optical Coherence Microscopy

Theo Lasser, Christophe Pache, Rainer Leitgeb, Martin Villiger, Simon Rutishauser

Based on a Debye integral approach, we engineered an extended focal field distribution for Fourier domain optical coherence microscopy. This simulation optimizes beam con- figurations for high lateral resolution combined with extended depth of field. ...

2009

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