Concept

Montre à quartz

Publications associées (81)

Scanning Probe with Tuning Fork Sensor, Microfabricated Silicon Cantilever and Conductive Tip for Microscopy at Cryogenic Temperature

Nico de Rooij, Terunobu Akiyama, Kaspar Suter

A quartz tuning-fork (TF)-based scanning probe is presented for local electrical transport measurements on quantum devices below the liquid 4He temperature. The TF is utilized to drive and sense the mechanical oscillation of an attached, microfabricated ca ...

2006

Analysis and modeling of electrostatic discharge in a tactile glass featured watch

Yves Perriard, Paolo Germano, Lionel Paratte, Daniele Demarco

Electrostatic discharge (ESD) in quartz watches is becoming more and more important due to the use of plastic materials and tactile sensors. The discharge can lead to different type of dysfunction such as a simple reset, a latch-up or the destruction of th ...

2004

Liquid-crystal electric tuning of a photonic crystal laser

Demetri Psaltis

An electrically tuned nematic liquid crystal (LC) infiltrated photonic crystal (PC) laser was analyzed. LC tuning of the PC laser was demonstrated by recording the lasing wavelength as a function of the voltage applied across the LC cell. The PC laser betw ...

2004

Symmetrically arranged quartz tuning fork with soft cantilever for intermittent contact mode atomic force microscopy

Nico de Rooij, Terunobu Akiyama

The dynamic mode atomic force microscopy based on a microfabricated cantilever and a commercial quartz tuning fork was probed. The probe was self-sensing and self-actuating. The tuning fork performed the function of a force sensor. The amplitude and freque ...

2003

Self-sensing and self-actuating probe based on quartz tuning fork combined with microfabricated cantilever for dynamic mode atomic force microscopy

Nico de Rooij, Terunobu Akiyama

A novel probe based on a commercial quartz tuning fork and a microfabricated cantilever is presented. The U-shaped cantilever with a monolithic tip is combined with the tuning fork in a symmetrical arrangement, such that each of the two legs of the cantile ...

2003

90 MHz nanomechanical structures fabricated by stencil deposition and dry etching

Jürgen Brugger, Marc Antonius Friedrich van den Boogaart

We present a simple method for fabricating fast resonating (90 MHz) nanomechanical elements based on the local deposition through a miniaturized shadow mask (nanostencil), followed by dry etching to release the structure from the substrate. The measured re ...

2003

Ultra stable tuning fork sensor for low-temperature near-field spectroscopy

Benoît Marie Joseph Deveaud, Andrea Crottini, Xiao Wang

We report on a distance control system for low-temperature scanning near-field optical microscopy, based on quartz tuning fork as shear force sensor. By means of a particular tuning fork optical fiber configuration, the sensor is electrically dithered by a ...

2002

Piezoelectric cantilever microphone for photoacoustic GAS detector

Nava Setter, Paul Muralt, Stéphane Hiboux, Andreas Seifert, Nicolas Ledermann

New micromachined pressure sensors based on PZT coated silicon cantilevers have been fabricated and integrated in a photoacoustic gas detector. PZT Sol-gel thin films texture and composition were optimized with respect to the transverse piezoelectric coeff ...

2001

Liquid-crystal blazed-grating beam deflector

Demetri Psaltis, Dalziel Joseph Wilson, Randoald Müller, Xiao Wang

A transmission-type nonmechanical multiple-angle beam-steering device that uses liquid-crystal blazed grating has been developed. Sixteen steering angles with a contrast ratio of 18 has been demonstrated. A detailed analysis of the Liquid-crystal and poly( ...

2000

Improving Clock Synchronization for MPEG-2 Services over ATM Networks

Jean-Pierre Hubaux

A stable clock indication is needed for the processing and playout of MPEG-2 streams. ATM networks can support the transfer of such streams but contribute significantly (as well as other system operations) to delay and delay variation. The MPEG-2 standard ...

1997

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