Publications de Michael David Canonica

Publications associées (5)

Large Micromirror Array Based on a Scalable Technology for Astronomical Instrumentation

Understanding the formation of galaxies and studying the expansion of the Universe, need the spectral characterization of faint astronomical objects such as stars or galaxies. From these spectra, the distance, the velocity and the chemical composition of t ...

EPFL2012

Large micromirror array for generating programmable slit masks for Multi-Object Spectroscopy

Nico de Rooij, Wilfried Noell, Michael David Canonica

Multi-object spectroscopy (MOS) is a powerful tool for space and ground-based telescopes for the study of the formation and evolution of galaxies. This technique requires a programmable slit mask for astronomical object selection. We are engaged in a Europ ...

Spie-Int Soc Optical Engineering2012

Optical characterization of fully programmable MEMS diffraction gratings

Wilfried Noell, Robert Andrew Lockhart, Michael David Canonica

We have fabricated and characterized fully programmable diffraction gratings consisting of 64 silicon micro-mirrors. The mirrors are 700 mu m long and 50 mu m wide with a fill factor of 90%. They are actuated electrostatically and move down by 1.25 mu m wh ...

Optical Society of America2012

Large micromirror array designed and tested for Multi-Object Spectroscopy

Wilfried Noell, Michael David Canonica

MEMS-based programmable slit masks are developed for multi-object spectroscopy in astronomy. Devices with 2048 tiltable micromirrors were fabricated and tested, exhibiting very good surface flatness, high contrast and cryogenic operation ability. ...

Ieee2012

The two-dimensional array of 2048 tilting micromirrors for astronomical spectroscopy

Nico de Rooij, Wilfried Noell, Michael David Canonica

In multi-object spectrometers, field selectors, which are located in the focal plane of the telescopes, are required for the selection of astronomical objects, such as stars or faint galaxies. We present a two-dimensional micromirror array as a field selec ...

Institute of Physics2013