Publication

Structured amplitude and phase fields behind microstructures: The quest for high contrast modulation at proximity

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Brillouin distributed sensing using localized and stationary dynamic gratings

Luc Thévenaz, Nikolay Primerov

In this work, we apply a recent technique for the generation of stimulated Brillouin scattering (SBS) dynamic gratings that are both localized and stationary to realize high-resolution distributed temperature sensing. The gratings generation method relies ...

Society of Photo-Optical Instrumentation Engineers (SPIE)2012

Brillouin distributed sensing using localized and stationary dynamic gratings

Luc Thévenaz, Nikolay Primerov

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

Statistical Study of the Unfolding of Multimodular Proteins and their Energy Landscape by Atomic Force Microscopy

Fabrizio Benedetti

The aim of the present thesis is to investigate several aspects of: the proteins mechanics, interprotein interactions and to study also new techniques, theoretical and technical, to obtain and analyze the force spectroscopy experiments. The first section i ...

EPFL2012

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We present an experimental method to study field structures of highly confined light after interaction with microstructures. A high-resolution interference microscope (HRIM) allows us to measure the three-dimensional (3D) amplitude and phase distributions ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

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The present study evaluated the potential of using the phase of T-2* weighted MR images to characterize myelination during brain development and pathology in rodents at 9.4 T. Phase contrast correlated with myelin content assessed by histology and suggests ...

Elsevier2012

Long Variable Delay and Distributed Sensing Using Stationary and Localized Brillouin Dynamic Gratings

Luc Thévenaz, Nikolay Primerov

Stationary and localized Brillouin dynamic gratings are generated using phase modulation of both pump waves by a pseudo-random bit sequence. The gratings are applied to long variable delay of pulses and to cm-level distributed sensing ...

Optical Society of America2012

Anticipation is a mental process during which a person actively engages in a phase required for the sensory perception and execution of the optimal actions at the arrival of the relevant future events. Since this process occurs before the execution of an i ...

EPFL2011

Linear micromirror array for broadband femtosecond pulse shaping in phase and amplitude

Nico de Rooij, Jonathan Leon Wolf

We are developing a linear array of micromirrors designed for optical, femtosecond laser pulse shaping. It is a bulkmicromachined device, capable of retarding or diminishing certain laser frequencies in order to perform phase and amplitude modulation withi ...

2009

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A method for simplifying the analytical treatment of single phase systems is introduced. This method, called monophasor theory, makes it possible to apply the same calculation methods and control strategies used for three-phase systems. This way, the spaci ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

An improved PWM method for a five-leg inverter supplying two three-phase motors

Drazen Dujic

Component minimized multi-machine drives have recently become an area of much research interest. One such drive comprises two three-phase induction motors supplied by a five-leg voltage source inverter. With only five legs available to supply two three-pha ...

IEEE2008