Publications related to Interferometer coordinate measurement system for use in measurement and machining tools has partially reflecting boundary surfaces within its measurement head with a separation shorter than the coherence length

Low-Power and Widely-Tunable Linearized Biquadratic Low-Pass Transconductor-C Filter

A sixth-order low-pass

g_m

-C filter with a very wide tuning range (

f_c

= 100 Hz to 10 MHz) is presented. The wide tuning range has been achieved without using switchable components or programmable building blocks. A single stage folded-cascode transcon ...

Institute of Electrical and Electronics Engineers2011

Highly tunable band-stop filters based on AlN RF MEM capacitive switches with inductive arms and zipping capacitive coupling

Mihai Adrian Ionescu, Catherine Dehollain, Dimitrios Tsamados

This paper presents wideband tunable band-stop filters working in the Ku to Ka-band frequencies based on a miniature single-MEM device combining a central capacitive MEM switch with AlN dielectric and inductive suspension arms. An outstanding 55% tuning ra ...

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

Highly tunable band-stop filters based on AlN RF MEM capacitive switches with inductive arms and zipping capacitive coupling

Mihai Adrian Ionescu, Catherine Dehollain, Montserrat Fernandez-Bolanos Badia, Dimitrios Tsamados

This paper presents wideband tunable band-stop filters working in the Ku to Ka-band frequencies based on a miniature single-MEM device combining a central capacitive MEM switch with AlN dielectric and inductive suspension arms. An outstanding 55% tuning ra ...

2009

Highly Tunable Band-Stop Filters Based on AIN RF MEM Capacitive Switches with Inductive Arms and Zipping Capacitive Coupling

Mihai Adrian Ionescu, Catherine Dehollain, Montserrat Fernandez-Bolanos Badia, Dimitrios Tsamados

This paper presents wideband tunable band-stop filters working in the Ku to Ka-band frequencies based on a miniature single-MEM device combining a central capacitive MEM switch with AlN dielectric and inductive suspension arms. An outstanding 55% tuning ra ...

IEEE2009

UMTS-WiFi Switchable Bandpass Filter

Julien Perruisseau-Carrier

In this paper a reconfigurable bandpass filter able to switch between WiFi and UMTS transmit band standards is presented. The filter is designed in such a way that center frequency and bandwidth specifications are precisely met by defining a switchable fil ...

2009

Off-axis low coherence interferometry contouring

Christian Depeursinge, Nicolas Pavillon, Florian Lang, Yves Delacrétaz

In this article we present a method to achieve tri-dimensional contouring of macroscopic objects. A modified reference wave speckle interferometer is used in conjunction with a source of reduced coherence. The depth signal is given by the envelope of the i ...

2009

Compact Fourier transform spectrometers using FR4 platform

Caglar Ataman

A novel magnetic actuated polymer optical platform is integrated into lamellar grating and Michelson type Fourier transform spectrometers. The proposed advantages of the novel platform over existing approaches, such as MEMS spectrometers, or bulky FTIR sys ...

2009

Adaptive optics in speckle interferometry and in super-resolution

Phanindra Narayan Gundu

This thesis describes innovative techniques for reducing speckle noise and improving the intensity profile of the speckle correlation fringes. The methods are based on reducing the range of the modulation intensity values of the speckle interference patter ...

EPFL2007

How to play with the spectral sensitivity of interferometers using slow light concepts and how to do it practically

Luc Thévenaz

We describe some interesting features that arise when slow and fast light structures are introduced in interferometers. With different configurations, one can obtain a spectral sensitivity enhancement of the interferometer or an enhanced robustness to lase ...

SPIE2007

Tomography using multiple wavelengths in digital holographic microscopy

Frédéric Montfort

This thesis presents a new tomographic imaging method using multiple wavelengths in digital holographic microscopy. It is based on the addition of several reconstructed wavefronts measured at different wavelengths. The resulting diffraction tomographic vis ...

EPFL2006

Interferometer coordinate measurement system for use in measurement and machining tools has partially reflecting boundary surfaces within its measurement head with a separation shorter than the coherence length

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Low-Power and Widely-Tunable Linearized Biquadratic Low-Pass Transconductor-C Filter

Highly tunable band-stop filters based on AlN RF MEM capacitive switches with inductive arms and zipping capacitive coupling

Highly tunable band-stop filters based on AlN RF MEM capacitive switches with inductive arms and zipping capacitive coupling

Highly Tunable Band-Stop Filters Based on AIN RF MEM Capacitive Switches with Inductive Arms and Zipping Capacitive Coupling

UMTS-WiFi Switchable Bandpass Filter

Off-axis low coherence interferometry contouring

Compact Fourier transform spectrometers using FR4 platform

Adaptive optics in speckle interferometry and in super-resolution

How to play with the spectral sensitivity of interferometers using slow light concepts and how to do it practically

Tomography using multiple wavelengths in digital holographic microscopy

Low-Power and Widely-Tunable Linearized Biquadratic Low-Pass Transconductor-C Filter

Highly tunable band-stop filters based on AlN RF MEM capacitive switches with inductive arms and zipping capacitive coupling

Highly tunable band-stop filters based on AlN RF MEM capacitive switches with inductive arms and zipping capacitive coupling

Highly Tunable Band-Stop Filters Based on AIN RF MEM Capacitive Switches with Inductive Arms and Zipping Capacitive Coupling

UMTS-WiFi Switchable Bandpass Filter

Off-axis low coherence interferometry contouring

Compact Fourier transform spectrometers using FR4 platform

Adaptive optics in speckle interferometry and in super-resolution

How to play with the spectral sensitivity of interferometers using slow light concepts and how to do it practically

Tomography using multiple wavelengths in digital holographic microscopy