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Investigating Tissue Mechanics in vitro Using Untethered Soft Robotic Microdevices

Publications associées (33)

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Gouy phase anomaly in photonic nanojets

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We investigate in real space amplitude and phase distributions of light in photonic nanojets emerging from micrometer-sized dielectric spheres with a high-resolution interference microscope. Strong localization of light and a Gouy phase anomaly are witness ...

American Institute of Physics2011

Multiwavelength High Resolution Interference Microscopy (HRIM) for the characterization of small size microlenes

Myun Sik Kim

Introduction Definitions of microlens and Challenges for small size 2. High Resolution Interference Microscope (HRIM) System and Upgraded features 5 frame phase shift algorithm 3. Principle of characterization of microlenses Standard tests Unconventiona ...

2010

Non-invasive dry mass determination and monitoring at the single cell level with digital holographic microscopy

Pierre Magistretti, Christian Depeursinge, Tristan Colomb, Benjamin Rappaz, Pierre Marquet, Jonas Kühn, Elena Cano

Digital holography microscopy (DHM) is an optical microscopy technique which allows recording non-invasively the phase shift induced by living cells with nanometric sensitivity. Here, we exploit the phase signal as an indicator of dry mass (related to the ...

SPIE2008

Microscopy capabilities of the Microscopy, Electrochemistry, and Conductivity Analyzer

Sebastian Gautsch

The Phoenix microscopy station, designed for the study of Martian dust and soil,consists of a sample delivery system, an optical microscope, and an atomic force microscope. The combination of microscopies facilitates the study of features from the millimet ...

2008

Shot noise, refractive index tomography and aberrations estimation in digital holographic microscopy

Florian Charrière

The present thesis develops some specific aspects of digital holographic microscopy (DHM), namely the effect of shot noise on the phase image accuracy, the use of DHM in micro-tomography and in aberrations evaluation of a microscope objective (MO). DHM is ...

EPFL2007

This thesis presents the development of a scattering scanning near-field microscope (s-SNOM) and investigations on the photoluminescence study of solid C60. The first part concerns setting up of such a scattering SNOM where a tuning fork with an attached A ...

EPFL2007

The Colored Revolution of Bioimaging

Michaël Unser, Cédric René Jean Vonesch, François Aguet

With the recent development of fluorescent probes and new high-resolution microscopes, biological imaging has entered a new era and is presently having a profound impact on the way research is being conducted in the life sciences. Biologists have come to d ...

IEEE2006

Longitudinally polarized fields in near-field imaging systems

The evolution path of nanotechnologies moves through the domain of microscopy. Among all the kinds of imaging tools available today, optical imaging systems are of primary importance. When using optical imaging systems, we take profit of the information re ...

Institut de Microtechnique, Université de Neuchâtel2006

From micro-assembly to biological observation, the optical microscope remains one of the most important tools for observing below the threshold of the naked human eye. However, in its conventional form, it suffers from a trade-off between resolution and fi ...

Optical Society of America2005

Application of CMOS image sensors in optical sectioning and polarization microscopy

Jelena Mitic

In this thesis new imaging approaches for optical microscopy are proposed and studied. They are based on the use of dynamic structured illumination in combination with a demodulation detection concept employing CMOS image detectors. Two particular implemen ...

EPFL2004