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

Nico de Rooij, Hans Peter Herzig, Roland Andreas Bitterli, Jonathan Masson, Toralf Scharf, Wilfried Noell

Shaping light with microtechnology components has been possible for many years. The Texas Instruments digital micromirror device (DMD) and all types of adaptive optics systems are very sophisticated tools, well established and widely used. Here we present, ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2011

Direct shaping of picosecond high energy deep ultraviolet pulses

Christoph Peter Hauri

We demonstrate temporally shaped pulses in the deep ultraviolet spectral range (270 nm) with energies up to 37 mu J using an efficient prism stretcher and an acousto-optic programmable dispersive filter (AOPDF) applied directly in the UV. The scheme allows ...

Springer-Verlag2011

Impact of self phase modulation on the performance of Brillouin distributed fibre sensors

Luc Thévenaz, Stella Foaleng Mafang

The spectral broadening of the pump pulse through self phase modulation in a time domain distributed Brillouin sensor is demonstrated to have a non-negligible detrimental effect, leading to a doubling of the effective gain linewidth after some 20 km in sta ...

The International Society for Optical Engineering2010

Extracellular recording system based on amplitude modulation for CMOS microelectrode arrays

Alexandre Schmid, Yusuf Leblebici, Neil Joye

An innovative readout channel, based on analog amplitude modulation of the signals recorded by each sensing site, is developed for high-density CMOS-based microelectrode arrays. A single amplification stage simultaneously records the neural activity acquir ...

2010

Autoregressive Models of Amplitude Modulations in Audio Compression

Petr Motlicek, Hynek Hermansky, Sriram Ganapathy

We present a scalable medium bit-rate wide-band audio coding technique based on frequency domain linear prediction (FDLP). FDLP is an efficient method for representing the long-term amplitude modulations of speech/audio signals using autoregressive models. ...

2010

Growth of intersubband GaN/AlGaN heterostructures

Nicolas Grandjean, Antonino Francesco Castiglia, Sylvain Nicolay, Denis Martin

GaN/AlN multiple quantum wells (MQWs), designed for intersubband (ISB) absorption in the telecommunication range, are grown by molecular beam epitaxy. We demonstrate that the use of both AlN template and optimized growth temperature allows to reach ISB tra ...

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

High aspect ratio micromirror array with two degrees of freedom for femtosecond pulse shaping

Nico de Rooij, Wilfried Noell, Jean-Pierre Wolf, Jérôme Extermann, Fabio Jutzi, Sébastien Lani, Luigi Bonacina

We show the first results of a linear 100-micromirror array capable of modulating the phase and amplitude of the spectral components of femtosecond lasers. Using MEMS-based reflective systems has the advantage of utilizing coatings tailored to the laser wa ...

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

Coping with low modulation in speckle interferometry: a novel approach based on the Delaunay triangulation

Pierre Jacquot, Sébastien Equis

Interferometric signals involving speckle waves invariably exhibit phase indeterminations. These indeterminations arise at the zero-intensities of the speckle fields, or singularities, and show themselves as a net loss of modulation depth of the interferom ...

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

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

Rotational Motion in LiBH4/LiI Solid Solutions

Shaping Light with MOEMS

Direct shaping of picosecond high energy deep ultraviolet pulses

Impact of self phase modulation on the performance of Brillouin distributed fibre sensors

Extracellular recording system based on amplitude modulation for CMOS microelectrode arrays

Autoregressive Models of Amplitude Modulations in Audio Compression

Active multi gate micro-electro-mechanical device with built-in transistor

Growth of intersubband GaN/AlGaN heterostructures

High aspect ratio micromirror array with two degrees of freedom for femtosecond pulse shaping

Coping with low modulation in speckle interferometry: a novel approach based on the Delaunay triangulation

Graph Chatbot

Chattez avec Graph Search

Rotational Motion in LiBH4/LiI Solid Solutions

Autoregressive Models of Amplitude Modulations in Audio Compression

Extracellular recording system based on amplitude modulation for CMOS microelectrode arrays

High aspect ratio micromirror array with two degrees of freedom for femtosecond pulse shaping

Direct shaping of picosecond high energy deep ultraviolet pulses

Growth of intersubband GaN/AlGaN heterostructures

Active multi gate micro-electro-mechanical device with built-in transistor

Impact of self phase modulation on the performance of Brillouin distributed fibre sensors

Shaping Light with MOEMS

Coping with low modulation in speckle interferometry: a novel approach based on the Delaunay triangulation