Concept

Banc d'optique

Publications associées (43)

Ultra-thick micro-optical components using the PRISM photosensitive flexopolymer

Martinus Gijs, Abdeljalil Sayah, Virendra Kumar Parashar, Venkataragavalu Sivagnanam

We present the photosensitive flexopolymer PRISM as a new promising material for the realization of thick optical components. The PRISM flexopolymer can be directly polymerized using conventional UV exposure and is simply developed in a water-based solutio ...

2007

Distributed sensing using polarization sensitive optical low-coherence reflectometry and fiber gratings

Dragan Coric

Optical low coherence reflectometry (OLCR) is non-destructive interferometric technique that allows measuring amplitude and phase of the light reflected from the device under test. OLCR is a powerful tool for the characterization of the various optical dev ...

EPFL2007

A complete digital optics applied to digital holographic microscopy: Application to chromatic aberration compensation

Christian Depeursinge, Tristan Colomb, Frédéric Montfort, Jonas Kühn, Florian Charrière

In optics, optical elements are used to transform, to filter or to process physical wavefronts in order to magnify images, compensate for aberration or to suppress unwanted diffracted order for example. Because digital holography provides numerical wavefro ...

SPIE2007

Optical characterisation of single quantum dots emitting at 1300nm

Carl Zinoni

This thesis deals with the optical characterization of single quantum dot devices emitting at 1300nm. Thanks to the development and optimization of the growth technique we were able to achieve at the same time emission at 1300nm and ultra low QD densities. ...

EPFL2007

Numerical parametric lens for shifting, magnification and complete aberration compensation in digital holographic microscopy

Christian Depeursinge, Tristan Colomb, Etienne Cuche, Frédéric Montfort, Nicolas Aspert, Pierre Marquet, Jonas Kühn, Florian Charrière, Stéphane Bourquin, Mihaela Marian

The concept of numerical parametric lenses (NPL) is introduced to achieve wavefront reconstruction in digital holography. It is shown that operations usually performed by optical components and described in ray geometrical optics, such as image shifting, m ...

2006

Detection of non-paraxial optical fields by optical fiber tip probes

René Dändliker

The optical response of a single-mode uncoated fiber tip to a 3D polarized field, including longitudinal components, is investigated. The 3D field is produced by an opportune superposition of TE and TM plane waves. The contribution of the different field c ...

2006

Metaphoric optical computing for fluid dynamics

Demetri Psaltis

We show that an optical pulse inherently computes three-dimensional classical fluid dynamics. Taking optical diffraction, dispersion and nonlinearity into account, one can define the metaphoric fluid density, velocity and vorticity in the optical pulse. We ...

2005

Micro-optical fer switch for a large number of inetrconnects: optical design considerations and experimental realizations using microlens arrays

Hans Peter Herzig, René Dändliker

The authors investigate a 1 × N free-space microoptical fiber switch for a large number of interconnects. The system to be studied is a reflective 4 f optical system. Alignment tolerances and coupling efficiency are investigated and the benefit brought by ...

2002

Coherent optical information systems

Demetri Psaltis

Coherent optical beams are used to communicate, store, and process information in a growing number of applications. The availability of coherent laser sources is of critical importance for the realization of such optical information systems. An incoherent ...

2002

The OFMET Watt Balance: Progress Report

René Dändliker

A new type of moving-coil Watt balance with a compact design is under construction at the Swiss Federal Office of Metrology (OFMET). Recently, several key components of the system have been characterized. In this paper, a detailed description of the mechan ...

2001

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